Live Coding with Fluxus

Fluxus is a live coding system built on PLT Scheme.

Fluxus reads live audio or OSC network messages which can be used as a source of animation data for realtime performances or installations. Keyboard or mouse input can also be read for games development, and a physics engine is included for realtime simulations of rigid body dynamics.

Fluxus is a very cool system and the maintainer Dave is a very nice guy. Be sure to check it out!
Addendum: 8/14/8
Dave posted some links to videos of fluxus and the no copy paste jam.
(via PLT)