Tomorrow is the big day for geeks everywhere who want an iPad. If you didn't pre-order, pickings might be slim on opening day for the device.

That's not to say you can't find an iPad tomorrow if you didn't order already, you just have to know where to look. We already know that most Best Buy stores will be offering the iPad in store Saturday.

A shopping search engine called Milo has announced that you can find stock levels in your nearest Best buy for the iPad directly from its site on your computer or mobile phone. All you need to do is hop over to the site, type in iPad and enter your zip code.