I use an Android MyTouch3G.
The game quality on Android has been improving solidly over the past few months. More 3D games are coming on market, and sales data has improved greatly over the past 5 months. Nowhere near the iPhone, but its a good phone.
BTW, Square launched the DS remakes of Final Fantasy 1 and 2 on the iTunes App Store about 2 days ago. They are just $8.99. Every iPhone VGChartz user must pick them up.
I wish that the people responding to this thread would have responded to my other thread requesting a new mobile gaming forum
Back from the dead, I'm afraid.