The URL of the project is as easy as C4iOS.com. I didn’t got into the technical details yet, but it looks, that C4 does a highly specialized encapulation of objects and enhances them, like doing lines, typo, movies, fonts, colors and openGL. This are things, that you can do with Obj-C and UIKit as well, but I expect it to do this with C4iOS faster, more flexible and in the end more elegant. Anyway… Here is the C4iOS site with some examples. Others like to read a little more about the backgrounds of this project at the Creative Applications Weblog.