Ahh okay, I knew Safari was going to be the end all, be all of performant web browsers using strictly native Objective-C (and it uses webkit too I believe). I notice that you're looking for C++ help above, and was thinking that maybe native mixed with C++ could produce a nice user experience that people would crave on iOS.

Haha I'm kind of just spitballing ideas here - I think not having Chrome sync and Safari sync is a good feature of iOS web browsers in a lot of different use cases. Plus a slim, portable Firefox clone could be pretty interesting to duke it out with those two as well as Dolphin and some other web browsers for the platform.