I have not seen anyone with it. I still feel weird using mine in public. Only because it seems like it is too far ahead of it's time. I feel like I am violating the "Prime Directive" or something to expose the average Joe to new technology.
Almost saw one last Friday. Guy that looked oddly like Steve Jobs had one in his pocket at a cocktail party. He resisted the temptation to pull it out for everyone to ooh and ah over.
ive seen a few and everytime i do i ask them "hey is that the iphone?" and they act all cool like "why yes it is, it does this and this and its all touch screen and it has youtube, etc" like they were walking advirtisements, then i say "i kno i have one too" and their expression just drops and they go "...oh" and walk away lol