Found this over at freewarepocketpc... Not really a game but fun none the less... Just like Caxixi for the Omnia...
Developer: LoFFactory
Support Email: loffactory.filipeoliveira@gmail.com
Web Site: http://www.loffactory.webs.com/
GSoudBox is an application for HTC Windows Mobile phones with G-Sensor. It plays a wide variety of sounds. The sounds are triggered by shaking the phone using a variety of gestures.
More info and Download available at:
http://www.freewarepocketpc.net/ppc-...v1-0-beta.html
Enjoy!!!