iPhone users are notoriously heavy consumers of mobile Internet—in some cases, surpassing the amount of time they spend surfing the Web on their computers. That could mean they’re apt to share the photos they take on more websites, rather than suggest that the phone’s camera is supplanting more powerful devices.
Before the iPhone I always carried a Canon Digital Elph with me. Take picture. Download to Mac. Edit in iPhoto. Upload to Flickr. Now, it’s direct from iPhone to Flickr.