I think it's funny that everybody is jumping on the CSS3 animation bandwagon because flash is clunky and maxes out your CPU, and the results are these cool demos that... max out my CPU. Don't get me wrong; it's a cool trick, and I'm as happy to see Flash die as anyone, but the wave of Actionscript 3D engines that were released 3 years ago were better looking and more performant. I understand that it's an immature technology, but I have a terrible feeling that in another year every webpage I visit is going to feature CSS3 animated banners that will have my aging macbook hot enough to grill chorizos on.
It's a good point, and this probably should never be used in production. If it is, it would be more like the "pole" example, which doesn't redraw except for user interaction. In that case, it won't max out your CPU.
