[DoubleMalt]

Without the intention to lessen what you did ... it's pretty laggy on my Galaxy Nexus in the default android browser.

But cool stuff indeed.

[ttflee]

It feels laggy on my old Mac Mini Early 2009 with Safari.

I doubt if canvas(, which is basically a JS wrapper for CoreGraphics in Safari) would be better in performance.

[podrivo]

It's not ready for mobile... Audio gets unsynced and animations aren't smooth. :/

[DoubleMalt]

Well. Who's bug is it then ;) I'm happy to blame the mobile browsers if you used standards (was not able to get a look at the code cause on the road)