[United857]

UIWebView doesn't support JS JIT, as it's still running in your process space.

[chj]

thanks, didn't know that. this is really sad.

[loumf]

They would rather do that then open an exploit possibility. As a user, I prefer that trade-off. It would bother me if I relied on PhoneGap or something similar, but in practice, the performance really isn't that bad.