Just how rabid a fan are you? Some one has decided to commission for a set wedding photos shot on iPhone, published on Instagram. This may sound cool and very hip, but just how long can you look at the results of the filtered photos?
Old photos look old because of the limitations of film and print processing. Digital photography, there is nearly none.
There other points to consider, size and quality of the iPhone camera sensor etc. Check out the commentary here and the album.
Personally, in this year, most of my photos were taken with a Samsung Galaxy SII. mainly because it is there with me when I am out and about. Not to mention it is so much easier to share the moment compared to a PNS.