If we were to ask you to guess what the most popular camera models were on Flickr, you’d probably mention an affordable D-SLR from the likes of Nikon or Canon along with a point and shoot model or two. But what you might not guess is that Apple’s iPhone now holds a top spot, rivaling SLRs for popularity. Yahoo’s statistical counter of camera use among Flicker members, called the Flickr Camera Finder, shows that since the arrival of the iPhone 3G model earlier this year, the phone has surpassed all other camera