FlightControl. An essential for any aviation enthusiast. Also, I like blackjack. I paid $0.99 for the pay version so I wouldn't have to put up with ads.
If I had the 3.0 firmware update, I'd also have the LiveATC app.
[Edited 2009-12-26 15:14:11]
Cleared to IAH via CLL 076 radial/BAZBL/RIICE3, up to 3k, 7k in 10, departure on 134.3, squawk 4676, Colgan 9581.