Would be nice to see some benchmarks. I can't see how this could be faster than just running it in Safari. In Safari you get access to far faster javascript jit than you do in the embedded app js engine. The app itself just translates the javascript canvas calls into objc calls to the core graphics.. which is what safari's canvas does anyway? Is the extra level of indirection through safari enough to compensate for slower jit? Plus it's a lot harder to compile this than it is to put a js game on the web.

Needs benchmarks to be able to make any decisions.