As I said on my previous post, it is pretty fun to play with multi-touch and, after I created some classes to handle it, it got pretty quick too!
In this experiment I recreated a navigation similar to the one use in a friend's project (fan like). I am pretty impressed how the device is performing (in the currrent demo all the images are animated everytime the fingers move). There is definitely margin for optimization, but still...
I presume next step for me might be to play with OpenGL ES and maybe port some of the stuff I did with OpenGL in the past. Lee is already working on a kind of porting of OF (OpenFrameworks) for iPhone SDK. I am curious to see how that goes. So far all my experiments are done 100% Objective-C, mainly for educational purposes, but I should definitely start looking on using more C++.
Stay tuned!