Apple fanboys may go on and on about how the iPad will change the world of computing forever, but we know why you really bought an iPad: games. Racing games, strategy games, MMORPGs, they’re all lining the virtual shelves of the iTunes App Store, waiting to be downloaded. How do you choose from a virtual marketplace brimming with so many choices — some good and some horrible? With a little help from your friends, of course. And by that, we mean us. Below are our constantly evolving picks for best iPad games.