A lot of people have been waiting for Angry Birds to show up for Windows Phone 7. This morning it was announced at MIX 11 that the extremely popular game will be available on the Windows Phone 7 Marketplace on May 25th. That’s still over a month away, and we’ve been hearing rumors of the game’s release for a long time, but at least now we finally have an actual date to look forward to. Naturally we expect it to support Xbox LIVE acheivements and leaderboards, but it will probably be mostly the same as the normal Angry Birds games on other platforms. How much do you think it’s going to cost though?