Super quick demo of Touch Arc, a Monome Arc Development Tool, that includes an Arc Emulator built around a Touch OSC template, and a Max/MSP patch which fakes the official Arc OSC communications and translates them to and from the touch osc template running on an ipad.
Source Code is available:
http://code.google.com/p/touch-arc/
More information:
http://nomeist.com/touch-arc-emulator/284
Info on the Arc:
http://monome.org/articles/2011/01/21/arc-details/
Arc OSC spec:
http://docs.monome.org/doku.php?id=tech:protocol:monome:text