My boss was an early adopter of html5 and has already cranked out an FWA site, a canvas framework, sat in on a panel discussing its future and landed several high profile contracts and even HE is starting to reel from the pain of working in it.

even Grant Skinner, author of easl.js (a very as3 style canvas api) is generally unhappy with it. One day, great tools may shield us against most of the hell (looking at haxe and FDT) but until then, I've got eyes on other professions.