Useful ukulele apps for the iPad?

I use ForScore with an AirTurn foot pedal page turner for leading the Turlock Uke Jamz. I haven't printed a song sheet in over two years. I also have an old tuner app called PitchBot that is extremely accurate and I can adjust it to 432Hz when I'm playing solo. For chords, I use Chords 4 Ukes.

+1 ForScore. Used in conjunction with Dropbox. Beats carting a giant gig book around, and since half the members of our uke group use it, getting copies of songs to them is a breeze. We have a shared Dropbox account and just upload handouts and info there, then use ForScore.