TumbleDots: FREE iOS game
I'd like to introduce you to TumbleDots: for iPod Touch, iPhone, iPad (regular + retina). It's free...and awesome. And needs your love to move up the ranks! ;)
You use your iDevice's accelerometer to tilt the board to move the gems to get matches of 3 or 4. Simple. Infuriating. Fun!
iTunes store link