Ugh, this resonates with me completely. Every time I see these guys I think: Ok, I can use Greensock's TweenMax and get every single bit of performance as these dudes are getting in their crazy hyped render engine. Its just totally, completely, silly IMO -- but that said, I'm also willing to be proved wrong. (It also makes me think of Mr. Doobs Periodic table that he put out after the very first demo using the Three.js CSS3 renderer that he wrote. How many lines of code was it, 10, 25? Both clocked at 60fps.)