While Android and webOS have made some significant steps toward gaming in the last year by adding support for 3D graphics, the iPhone is still king.

And with the new coming later this year to iPhone 4, the iPhone will become the ultimate social gaming mobile platform. With Game Center, you can easily challenge your friends to games, find and play against players with a similar abilities, and display your achievements to your network.

One platform to keep an eye on, however, is Windows Phone 7, which will ship with a mobile version of . Like the iPhone Game Center, you'll be able to connect with other gamers keep tabs on their achievements and communicate with them in game play. Users will also be able to purchase games and apps easily from the Windows Marketplace as well.

When Apple acquired last summer, rumors swirled that the company was developing its own maps and navigation application for the iPhone.