Ireactable is a project mainly written in OBJECTIVE-C and PURE DATA, it's free.
UCSD CSE 237D Course Project
iReactable is the codename for John Kooker's UCSD CSE 237D course project.
The course was taken in Spring 2009.
Course website: http://www.cse.ucsd.edu/~kastner/teaching/cse237d/ Project info: http://johnkooker.com/blog/cse-237d-embedded-system-design/