Not sure if everyone here in the forums know about this site yet, but if you don't its great. They are doing a different free game for download everyday day of the year (year round if i am not wrong about this)
Totally worth checking out everyday if you like free apps :)
Today's free one looks like it is Flux Tunes . Haven't downloaded it though as it is not my kinda app.
Good luck with your app hunting :)