TheSwedeUK
Lurker
This is a great little game. Remember Bejewelled? This is basically the same, one of those games you just can't stop playing. And it was the first app I've come across which can be installed/moved to SD card (requires Android 2.2 FroYo). Online scoreboards reach 1.3 million points, I never managed more than 60k but still very fun. 3 different modes: Normal, Timed and Infinite. You can save a started game anytime and resume when you like. Runs very smoth on Nexus 1 but also has an option to disable Sprite Filtering if the game feels sluggish on a less powerful phone.