Mashable is reporting tonight that the iPhone is set to replace the Canon Rebel XTi as the #1 source of photographs on Flickr:

That smartphone, with its weak 2 MP camera and its lack of zoom, is now set to overtake Canon Rebel XTi as the #1 camera on Flickr. This is according to Flickr’s Camera Finder graphs. Actually, as the LA Times has already caught, the iPhone has already passed the Rebel XTi on a few occasions as the two duke it out for the top spot.

flickr-stats This shouldn't come as a surprise (price differential, convenience and ease of mobile uploading) - but it is noteworthy. As an owner of both the iPhone 3GS and the Canon Rebel - I can say that I too have found myself opting for convenience and mobility over artistic and picture quality.

As we all await Facebook's new iPhone App (which is setting in Apple's approval queue and enables mobile video uploads), we should expect the iPhone to quickly become the #1 source of video on Facebook - which is currently the tenth largest video provider on the web. It will be interesting to see just how much activity the iPhone / video integration produces and whether it is enough to advance Facebook beyond #10 (#9 AOL is 50% larger and #8 Hulu is over 2x).