Microsoft don't do things small, and today was no exception. Customers can today experience new Windows Phone 7.5 (Mango), with a selection of new, sleek and stylish smartphones from HTC and Samsung starting at just $49.99. The Samsung Focus S and Focus Flash are available today at AT&T and are the latest additions to the Windows Phone portfolio, joining the HTC Radar 4G available at T-Mobile USA Inc.

Microsoft designed Windows Phone around one simple concept: People belong at the center of the phone experience. This is where Microsoft go all-out and have put real people inside a gigantic six-story phone in NYC's Herald Square to bring to life the phone's key features and experiences. Included was a life-sized "Plants vs Zombies" battle highlighted the phones rich Xbox LIVE gaming experience.

The Music + Video Hub was bought to life by the Far East Movement performing a concert for hundreds of fans, and while "connecting people" was shown by a NY-based man proposing to his girlfriend from inside the Me Tile of the giant six-story phone.

The new Windows Phones in the U.S. are 4G-capable, include front- and rear-facing cameras and offer a range of price points. Let's roll onto the specs, shall we?

• The Samsung Focus S builds on the success of the award-winning and highest-selling Windows Phone in the U.S., the Samsung Focus. Also available from AT&T for $199.99, it features a brilliant 4.3-inch Super AMOLED Plus display, a 1.4GHz processor, 4G-capable speeds and an incredibly thin profile at 8.55 millimeters; it also includes an 8-megapixel camera.

• In addition, the Samsung Focus Flash is designed to hit the market packed with value at just $49.99. Its 3.7-inch Super AMOLED screen will both fit in pockets and be light on pocketbooks, with the full power of Windows Phone 7.5 inside. As fast and lightweight as it is compact, it runs a 1.4GHz processor and has a 5-megapixel camera.

• Crafted from a single piece of polished aluminum, the HTC Radar 4G from T-Mobile offers a premium, unique design along with a vivid 3.8-inch screen. Running on America's Largest 4G Network™, the HTC Radar 4G is available at T-Mobile stores nationwide for $99.99 after a $50 mail-in rebate card with a two-year service agreement.

• Also coming soon is the HTC TITAN from AT&T. With the largest screen of any Windows Phone, the TITAN is perfect for multitasking and making your entertainment and photos come to life. Sporting a 4.7-inch screen and an ultraslim, 9.9-millimeter design, it is unlike anything you've ever held before. The TITAN is 4G-capable and is equipped with a 1.5GHz processor and an 8-megapixel camera with dual LED flash.