I would be interested to know how that whitelist is implemented. I would suspect that the default apps (Safari, Mail, iTunes, etc) are compiled to use a custom

I would be interested to know how that whitelist is implemented. I would suspect that the default apps (Safari, Mail, iTunes, etc) are compiled to use a custom implementation of UIWebView that uses JIT (which would completely prevent Chrome from using JIT), but it would be interesting if there is a switch (perhaps by a plist key) that Apple could flip, so a few selected apps could get access without the need to do compile against private libraries.