Well, not having an iPhone I can't really join in on this but I do really like some of the images that are being created. Very spontaneous and creative. There is an exibition of iPhone work on at the moment in Germany mainly by a photographer called Nikolai Karo (http://www.nikokaro.de), and illustrated here http://www.fotogalerie-im-blauen-haus.de/news/. There's an article about him in Fine Art Printer and they are referencing iPhone photography as the 'New Polaroid'. I can see why.
Looking forward to seeing more!! Might even be tempted to get an iPhone myself!!!
I feel compelled to write this..... I was in the pub watching the rugby got my iPhone out and dropped it.... Back screen shattered and shards of glass every where, had a quick repair with some selotape. Rang orange my service provider and who I also have insurance with I spent 6 minuets on the phone to some northern woman who called me "pet" I will be receiving my replacement iPhone 9am tomorrow morning ( a bank holiday in the uk ) amazing service I'm chuffed to bits !!!!!