To be frank, what I'm most interested in is
proper CANVAS implementations.
That aside, I trust you've seen Paul Rouget's greenscreening/chromakeying implementation for canvas?
Most impressive.
Also, the work on ogl/glsl/pixshader implementations for canvas is very intriguing, because it makes everything run amazingly fast, at high res even, as ogl is not retardedly slow. There was a guy at mozcamp who's done some very amazing things.
PS: POLEMICS:
The sooner flash dies, the better.