Our friends Phelios have just released their first production for iPod Touch and iPhone. They used the PTK game engine.
The gameplay of iSnap is simple and catchy.
Drag, pull and release the ball so it flies up into the air and lands on the board, where gems will be cleared. If the ball lands on grouped gems of the same color, the whole group will be eliminated. Clear as many gems as fast as possible before the board fills up to the top, and try to beat the highest score.
iSnap is available here.