Touch The Wave -- Scratch audio samples! I've only just barely played with this, but this is great for using the touch interface on the iPhone.read more at http://createdigitalmusic.com/2008/11/05/touch-the-wave-free-looping-and-scratching-audio-on-iphone-elsewhere/
Fliparoni -- try a still first, and then try a video. whoa!read more at http://www.pocketgamer.co.uk/r/iPhone/Fliparoni/news.asp?c=9846