Looking for a way to get into mobile development? Build a game with a little help from this open source project on CodePlex.
ScriptTD is an open source project that allows anyone to easily create a new Tower Defense game for the Windows Phone 7 platform, without any prior programming knowledge. The project lets you create new art & audio and edit some XML files to bring it all together into a polished game without having to write all of the code required to make the game work.
Head to http://scripttd.codeplex.com and follow the instructions there to get started.