Not only do we have another Windows Phone 7 game demoed here but the developer states that he spent 6 hours to port it from Xbox to Windows Phone 7 (that may be time in so far – hard to tell the progress). But XNA on a phone will do that.
Scribble Defense is an Indie game for Xbox that’s a tower defense style game. It’s described as:
You are the Scribble Meister, a master of inks and defender of Scribbles. As their sole protector, you alone defend them from an unrelenting march of vicious Scrawls. Each puzzling level will challenge you to play creatively; deploy destructive towers to unleash powerful attacks, or kinetic towers to manipulate foes and the very paths they use to assault you. Hurry, the Scribbles need your help!
For reference, a complete review of the game can be found here at Xbox360Digest.com which will take you through the game in a lot more detail. Oh you want to see it in Windows Phone 7? Thought you’d never ask: