This is definitely fun... It'd be nice if it used Github to login and save to Gists. Also, I think it'd be better if the developer called u(t){}, rather than it being the content of the entire post, so it could set up variables, etc., and since it already has a few shortcuts like c,x,C,S,T,R, might as well add in a more complete API.
Ah, didn't realize, my bad! It's doable in fewer characters of course, but still a waste. Funny, I thought it was just a bit odd how terse some of these demos were, but given the 140 char limit that I somehow didn't notice at all it makes more sense.