The Windows Phone version of Crackdown isn't a first-person shooter like its console sibling.
Rather it is a tower defense game set in the Crackdown world. In this game, users must defend the location from freaks trying to attack. A cool feature is that users can set any location in Bing Maps and the freaks will even walk down the actual nearby roads.
One of the key Xbox live features that Microsoft is bringing to Windows Phone 7 is the ability to use one's avatar. A nice plus is that the avatars also play a role outside the gaming world, showing up in various other apps, such as a flashlight program.