One of the most addicted games - Angry Birds is now available for Windows Phone 7 . Before it was almost available for most of the popular platforms including Mac , Windows , Android , Facebook as well as for Chrome Browser and now its finally hits the Windows Phone 7 Marketplace . Angry Birds for Windows Phone 7 contains 165 levels but for all other platforms , it generally contains 255 levels . And the good thing is that it allows XBox live integration .