badal,
I have friends that own an Iphone, and it is an awesome phone. However, my neighbor just turned in his Iphone two weeks ago and picked up my same phone.
While playing poker, we 'tested' our phones. We would google the same things at the same times, and mine would pull websites up almost twice as fast as his.
We do not have a very good AT&T set-up around here. So that is the reason. I've heard in bigger cities, the Iphone is just as fast, and no problems.
So I think it really depends on your location.