On a slightly related note, what's up with the "Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_1 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Mobile/5F136" that keeps appearing randomly in some posts? I assume that means it's posted from an iPhone, but Mozilla? Gecko? Aren't those completely different from WebKit?
Another thing. How difficult would it be to build Firefox for iPhone? Obviously the source code is there to use. Is it possible to build for ARM11? I'm sure a simple interface wouldn't be hard, but is it even feasible (i.e., obviously it can be built for OS X, but can it be built on ARM, whether for OS X, Linux, or otherwise)?