Takeaway from High Performance HTML5

http://www.slideshare.net/souders/high-performance-html5-sf-html5-ug

speed matters
WPWG (web performance working group)
Web Timing (Navigation/User/Resource timing/window.performance)
prefetching, prerendering
async & defer
app cache (update is served on 2nd reload?!)
localStorage (5M max) as cache
! @font-face