Mashable notes this morning that the iPhone is no longer the most popular camera used by Flickr users. That honor now goes to the Canon 5D Mark II. Canon's numbers have been rising for months, and pics from that Canon model totaled 4,643 yesterday. The iPhone 4 users posted 4,460. The iPhone 4 was the number one image contributor when rankings were released last June.
There's one thing to take into consideration. The iPhone numbers only reflect the use of the Apple provided camera app. If you're using
