The iPhone 4 has steadily been pushing its way up the most-uploaded list at Flickr for some time now, it's almost toppled the Nikon D40 off the pedestal. It'll be around a month when Apple receives the Flickr crown, on Flickr, at least.
Interestingly, the D40 is three years old, and the iPhone 4 is under a year old. Behind the iPhone is the Canon EOS Rebel XSi, which is also three years old. The second chart, above, shows the decline of the most popular compact cameras, which coincidentally are all Canon PowerShots.
So what's behind this trend? Is it that more people own iPhones than compacts, or simply that the iPhone's always-connected status (well, if you're not on AT&T, anyway) is a better conduit for uploading pics on the fly?