HTML5 Demos
Apple HTML5 Demos:
http://www.apple.com/html5/
http://developer.apple.com/safaridemos/
Google HTML5 Demos:
http://www.html5rocks.com/被Gov墙了，需代理访问，可以访问下面的网址。
http://code.sh/man/html5rocks/slides.html5rocks.com/html5.html
Other Demos:
http://html5demos.com/
CSS3 Demos
47 Amazing CSS3 Animation Demos
CSS3 Demos
CSS3 demos and tools
CSS3 Library
10 Interesting CSS3 Experiments and Demos
JS Library on Mobile
Sencha Touch Examples
jQTouch Demos
Kiva Touch Demos