If you are interested in using Kinect camera + Processing, I have just got mine, installed and working fine.
This is the processing library that works for PC:
This is the model of Camera you need to buy (it need to be the stand alone version with power supply):
Only slightly tricky part was how to install the drivers, but I can help with that if you want. Any questions, please feel free to email me.- Felix Raspall

Issues Getting Arduino & Processing to Talk
If you are getting this error:
WARNING: RXTX Version mismatch
Jar version = RXTX-2.2pre1
native lib Version = RXTX-2.2pre2
Try this:

How to Shrinkify Your Arduino Projects - Video Training - Free 7 day Trial Online Training Library® | Trial Subscription

Corona SKD - Iphone/ Android development in Lua

Processing for iPhone