If you're in the US and itching to pull the trigger on Samsung's upcoming Galaxy S4, then this will be news to your ears if a leaked Staples document is anything to go by.

The leaked document is from a store training sheet, which says that AT&T will be offering the Galaxy S4 on April 26. Verizon will receive it on the 30th, and T-Mobile following on the 1st of May. The document does have in bold that these are tentative launch dates - so they could shift around by a few days or so.

Apple needs a come back in the mobile OS department, and it looks like iOS 7 could just be that. The Cupertino-based giant is set to tease the world with iOS 7 at their Worldwide Developers Conference (WWDC) in June.

Then we have news from Morgan Stanley analyst Katy Haberty, who predicts Apple's iOS 7 will include a new Internet service, such as a mobile payment system that will continue on from Passbook, or a new music streaming service - something we've heard about before - where she expects this new service to be iOS 7's 'killer app'.

We've already heard of the huge UI overhaul on iOS 7, so it looks like Apple is now playing catch up to Android - because if the world's most advanced mobile operating system was indeed titled correctly, we should only expect evolution, not revolution.

Brian White, an analyst at Topeka, has issued a new research note with some thoughts on what to expect from what the analyst is calling the iPhone 5S. White expects Apple to release the iPhone 5S this summer.

White did previously predict that the new iPhone would come in multiple screen sizes, but he now reports that the iPhone 5S will continue with its 4-inch screen size. White claims the left side volume and mute buttons will be arranged differently, and that the iPhone 5S will come with the rumored fingerprint technology. This addition to the phone will be what Siri was to the iPhone 4S, differentiating the devices.

White also touches on the subject of a cheaper iPhone that will be released this summer, where he says:

Strangely enough, the lower-priced iPhone is still being called the "iPhone mini"; however, the general consensus (albeit a few disagreed and expect a slightly smaller screen) was that this new device would actually have the same screen size (i.e., 4-inches) as the iPhone 5. However, the "iPhone mini" will have a curved back casing made of colored plastic and will be thicker than the iPhone 5. We also learned the pricing could be a bit higher than our recently raised expectation, reaching as high as $400.

I'm yet to try Facebook Home out on my Nexus 4, but it seems I might be getting excited over nothing if the Google Play reviews are anything to go by. Just 24 hours after the launch of Facebook's latest Home app, 44% of users who reviewed the app on Google Play have given it just 1 star.

19.4% of users gave Home a 5-star rating, which gives us an average of a 2.4-star rating on Google Play. What did people not like about Facebook Home, well, we have a snapshot of a few of the reviews - and there are plenty more to take a look at.

Project Unity is an interesting beast, a single, unified gaming console made by hardware hacker (among other things) 'Bacteria'. Project Unity crams in a bunch of the best consoles from the past couple of decades into a single gaming box.

Project Unity includes Sega Master System, Neo Geo MVS, GameCube, Dreamcast, Saturn, Intellivision, Colecovision, Atari 7800, Turbografx 16, PS1/PS2, Mega Drive, NES, Super NES, Game Boy Advance, Nintendo 64 and Amstrad GX4000 games. The console was made out of authentic hardware and doesn't use any emulators of combo units. It does all of this from a single power supply, video output and custom-built controller - no matter the system selected at the time.

If you haven't seen or heard about Far Cry 3: Blood Dragon yet, then the trailer (below) will make you want to buy it, right now. The game is set in the "near future" of 2007, and has the main character voiced by 80s action star (The Terminator, Aliens) Michael Biehn.

There's a bunch of cyborgs, toxic wastes, neon lights and a huge VHS feel to the trailer - which all adds to its awesome feel. It looks like Ubisoft are having a bunch of fun with this game, and by the looks of it, it could've been its own game and dropped the Far Cry 3 name completely. Far Cry 3: Blood Dragon launches next month!

According to market intelligence firm ABI Research, tablet sales are set to create $64 billion worth of sales this year - up 28% year-over-year. Over the course of 2013, there are set to be approximately 150 million tablets sold, up 38% year-over-year.

Since 2010, Apple has been the tablet champion - where last year's shipments saw 60% of tablets purchased by customers come with iOS while Google's Android OS sat at 37%. The remaining 3% of the market was divided up to Windows (in its many flavors), BlackBerry Tablet OS and unidentified OS implementations.

It should be an interesting year, to see if Apple can hold onto that 60% of the tablet market, or whether they'll see those numbers erode away as people move toward Android-based slates.

AMD are definitely doing their best to jump back into the market, as they're really struggling right now. They've won contracts to have various products in all three next-gen consoles, and their Never Settle promotion for Radeon GPUs is doing very well.

In the CPU market however, things aren't so well, as Intel are just dominating too much. Haswell is about to launch, Intel's fourth-generation Core processor, and AMD have, well, nothing - or do they? There are now rumors going around that AMD are to release a super-FX CPU based on the Vishera architecture that makes the FX-8350 come to life, which runs at 4.2GHz.

This new CPU, codenamed 'Centurion', will be released in very limited quantities and would ramp the clock speed up to 5GHz - all on air. There's no details on what voltage or supporting hardware needed to run at this speed - but if the rumors are true, we're looking at around $795 for this limited edition FX CPU.

I think this CPU would have to run rings around Intel's Haswell CPU - especially at $795, which would most likely buy you a Core i7 4770K, a good motherboard and 16GB of RAM in just a few months time.

A study conducted by AV-Test, an independent German testing lab, found that Bing returned over five times as many links to malicious sites than Google did. The study, conducted over 18 months, found out that malware sites are still appearing as top search results, even with all of the work Google does to keep them from appearing.

The entire study examined around 40 million different websites that were returned from seven different search engines. Google did quite well in the study, returning just 272 malicious results in 10 million. Bleko did even better, though not by percetnage. Bleko returned just 203 out of three million results.

Bing, on the other hand, returned a massive 1,285 malicious results out of 10 million. Yandex was one of the worst offenders, returning 3,330 malicious results out of 13 million pages.

Unfortunately, the creators of malicious websites are using search engine optimization tricks, causing malicious websites to sometimes be the top returned result. Just remember to be safe when searching the web.

The House of Representatives now have access to the music streaming service Spotify. Previously, Spotify had seen itself banned in the House due to an IT rule that prevents peer-to-peer technology when operating on the House's secure network.

To help protect House data, our IT policy generally prohibits the use of peer-to-peer (P2P) technologies while operating within the secure network. While Spotify is currently not authorized, the CAO has and will continue to work with outside vendors to enable the popular services that improve member communication capabilities.

Hopefully some Spotify music will calm the nerves and reduce the fighting between members of the House. May I recommend Why can't we be friends by War?

I received an e-mail today, along with the thousands of other early backers of the Ouya console, detailing the shipping schedule of their consoles. All backers are still set to receive their consoles by May 25, where 25% of which will receive them before the end of April.

Ouya have said that they've changed a partner this week, so they "could shave days off the total shipping timeline". They've hired more people to expand the Ouya team, in both their production house and distribution facility, in which they're already "seeing the benefits of this".

Samsung's Galaxy S4 isn't even out yet and there's already one lucky SOB who has received one, and like you'd do with one of the hottest phones of the year (I'm grinding my teeth typing that), you tear it apart.

TechnoBuffalo posted the teardown video, which sees the Galaxy S4 surprisingly easy to take apart. The S4's screen might cost users a bit to replace, if they ever needed to, but other than that the S4 is "almost infinitely" easier to repair than the HTC One. You can also read the teardown write up here.

If you thought the $10,000+ for an Ultra HD TV was too much, Seiki are coming to the result. TigerDirect have this Seiki 50-inch 4K-capable TV for sale, for just $1299. Yes, $1299.

The Seiki 50-inch Class 4K2K LED HDTV has the eye-busting 3840x2160 resolution we all dream of running, backed up by the buttery smooth 120Hz refresh rate and 6.5ms response time. This should mean it will provide some ultra high-res, ultra pretty, and ultra smooth gaming. Desktop use on this thing would be a beast, I just wish I could have it shipped to Australia.

According to a CNet report, the next iPad--likely the iPad 5--could be slimmed down by shrinking the LEDs used to backlight the screen. They cite NPD DisplaySearch, an authority on all things display related: "It's likely that part of the thinner/lighter design will be reducing the size of the LED backlight, partly by making the display more efficient and partly by using more efficient LEDs."

Other option for Apple to reduce the thickness and weight of the next iPad would be to change the touch sensor: "The other significant change that we feel is likely is a shift to a film-based touch sensor," Paul Semenza, an analyst at NPD DisplaySearch, wrote.

Apple has also been rumored to be looking into different display technology, such as IGZO. Sharp has heavily pursued IGZO and was originally expected to be present in the third-gen iPad.

Rumors place the next-gen iPad arriving sometime in the third quarter, likely around September.

Google has obtained a new domain to use for URL shortening. YT.be is now in Google's possession and we imagine that it will be used to shorten links to YouTube videos. Currently Google uses Youtu.be for shortened links that point to YouTube videos, but characters are becoming increasingly important.

YT.be is currently redirecting to Google's goo.gl URL shortening webpage. Google acquired the new URL from a Belgian Internet entrepreneur who originally purchased the domain in May 2003. Purchase price has not been disclosed.

It's unlikely that Google would opt to use YT.be for anything other than YouTube issues for many reasons. The most obvious reason would be branding issues, which is the same reason Google only uses g.co for Google websites.

Google will likely start using YT.be to shorten YouTube URLs soon.

Our Ask the Experts section has a new question, where we have Ahmad from Malaysia wanting to upgrade his GPU but before he does, he wants to make sure there's not going to be a CPU bottleneck, and that his PSU is capable of taking the upgraded GPU.

Q: Here's my spec:

• MB: MSI 7636 H55M E33 Chipset AMI BIOS v10
• PSU: Cooler Master Extreme Power Plus 500W
• CPU: i3 530
• RAM: 2 X KVR1333D3N9/4G (8GB)
• HDD: 1 X ST3320418AS Seagate Barracuda 320GB and 1 X WD 500GB
• GPU: ASUS GT 440 1GB DDR5
• OS: Win7 64bit ultimate
• DISPLAY: 32" Sony Bravia EX65 1080p

Im thinking of upgrading my GPU to 7850, will it be any problem especially on CPU bottleneck, the PSU (since Cooler Master Power calculator tells me i need 550w ones). What do you guys recommend?

A: You can view the answer to Ahmad's question right here.

Those of us with older Android smartphones were pretty bummed out to hear that our devices will not be able to run Facebook Home. Things are not as bleak as they appear, though. Facebook has just released an update to Messenger that will bring Chat Heads to most Android phones.

The new update will install Chat Heads to Facebook Messenger on Android devices running Android 2.2 or later, which means that unless you own a bottom of the barrel 3+ year old phone, the update should work on your phone.

I checked out the available updates for my phone and tablet, and both had a Facebook and Facebook Messenger update available, but after installing the update and testing, I have yet to see any Chat Head functionality. I only update about once a month, so chances are that both updates were old and the new one has not yet been pushed to my devices.

This morning Nintendo officially announced that it will be canceling several services built into the Wii effective June 28th. The apps on the chopping block are ones not featured on the Wii U, and were expected to be canceled at some point.

Wii users will no longer have access to News, Weather, Everybody Votes, Mii Contest, Digital Camera Print and Nintendo channels, as well as WiiConnect24 apps like messaging and exchanging system data.

Nintendo has yet to announce if the apps will be removed elsewhere too.

In the past 48 hours, life has been pretty stressful for those invested in the virtual currency Bitcoin. On Wednesday the Bitcoin exchange Mt. Gox experienced a massive crash that led to the Bitcoin losing half of it's value. Then yesterday Mt. Gox announced a 12 hour suspension in trading to upgrade servers, and let investors calm down over the crash.

This morning we got word that before yesterday's shutdown, Mt. Gox was also attacked by hackers when it experienced a massive DDOS attack. This is the second large cyber-attack on the exchange in less than a week, which should fuel speculation about the security of investing in a yet-to-be vetted virtual currency.

Skeptics of Bitcoin will be quick to point out the fact that it will be hard to validate the new currency until the market is secure from such attacks, and measures are implemented to prevent such massive sell-offs.

LG is looking to combat rival Samsung's Galaxy S4 head on with its flagship Optimus G Pro, which features similar hardware included in the Galaxy S4. With some planned software tweaks and a "Value Pack" upgrade, the Optimus G Pro will even more closely resemble the Galaxy S4 in function.

The Value Pack will introduce a "Smart Video" feature which like Samsung's Smart Pause, will pause video when a user's eyes are not focused on the screen. Also included in the upgrade pack is the ability to pause live recording and start it again in the same video file. Users will also be able to use both the front and rear cameras to capture both a photo of the subject and the user at the same time.

Existing Optimus Pro smartphones in the Korean market will begin getting the Value Pack upgrade beginning today, with further roll-out taking place in the coming weeks.