If you read the page these movies are on, it explains that the graphics libraries were all running under 'non-JIT emulation' at that point - ie. they were 68k code running on PPC quite inefficiently.
Still too slow. I would imagine that the graphics hardware would have more impact on actual performance than the renderer. I remember using QNX with the ultra-slow "flat mode" VGA driver, and it still blew away those movies.
But then, this is why people are loathe to show off incomplete software. Hopefully a more complete version, with full hardware acceleration, will be demonstrated soon.
I don't understand the point of the GUI responsiveness movie. Responsiveness is technically the computer's ability to keep the user informed of exacty what is going on and how long it will take. To do that, you really have to have closer shots so we can actually read what's on the screen *hint hint* :-D
