First: here’s Dong Chang! (App Store) What is it, and what does it do? I think we’d better let the developer explain:
“It is every funny and easier to play. Try to sway your iphone/itouch Three dimensional direction, You can get three Hip-Hop’s accompanist. Whenever, any where you can dancing with your iphone/itouch. Come on, Move your body, geting Exercises! You will be enjoy it.”
Fantastic! Next!

Whacket! (App Store) “replicates the experience of playing your favorite racket sports – without the hassle of all those silly rackets.” Thank goodness for that. Rackets, eh? Who needs ’em?