I've played with Hakim's HTML5 experiments for more hours than I can remember. His plays involve advanced usage of CSS 3D transitions, and his Javascript skills are pretty damn good. Would love to work with him on an innovative user experience project.
Check out these lab experiments:
"Hypnos"
http://lab.hakim.se/hypnos/
"Ladda"
http://lab.hakim.se/ladda/
