HTML5 Snake
xarg.org
xarg.org
Here's a game I made for my girlfriend in a couple of days for Valentine's Day: http://ektomarch.com/games/VDGame/VDGame.html (excuse me for the hammy dialogue)
I wouldn't normally make this public, but I think this better shows what's possible. It seems that HTML5 games haven't even begun to approach the state of flash games in the early 2000s, and this is a problem.
Also, I'm running on a cheap-o server, so things may die/not load.
It -seems- like your beef's not actually with the state of HTML5, but with what you're seeing submitted to this site. Which I guess is fine, but more focused criticism would be a more better way to help push everyone forward.
Personally, I just like seeing people make things :) Or I'm just reaaaally laissez-faire.
You should also use requestAnimationFrame instead of setInterval.
http://paulirish.com/2011/requestanimationframe-for-smart-animating/Great game.
Seems like an elegant implementation.
It was also one of the first games I made while teaching myself programming, in QBASIC, in 1997 or so. No graphics, it was all text.
BTW the javascript alert shows up on a different monitor in my dual-head setup.