My co-worker thought she did. Thats what she called my Mogul earlier. "Is that an iphone?". arghh!!! If I wasn't such a gentle man =)she would've gotten a black eye. Sorry for ranting but no I havent seen one around either.
I think I saw one guy walking down the street using the headphones to talk through. Looked like an iPhone in his hand but I didn't get close enough to confirm.