I live in France and we have 3G network since Q4 2005. In UK and Italy since 2003. So what?
BTW I confirm what a friend (who is working for a phone retailler) told me: iPhone is too large
As a proof, people don't want to walk in the street with a 30Gb iPod because the device is too large. They do prefer iPod nano so far. And if you consider the iPhone even bigger than a 30Gb iPod... so.
i walk around with my 30 gig ipod in my pocket all the time. i've used my roomates nano, and it's smaller, but i would say both work in my pocket.