Photo sharing site Flickr tracks and publishes the device origin of all the photos that are posted to its site. With over 4.5 million users uploading photos daily, this data set is enormous.
Stats from a month ago show the iPhone 4 is at the top of the heap of not just smartphones, but of digital cameras as well. Currently, over 4,000 daily users upload photos taken with their iPhone 4. Over 7 million photos have been uploaded since the iPhone 4 launched last June.
Moving to the iPad 2, the stats are pretty abysmal. A month ago, only nine users were uploading iPad 2 photos. Today, that number has climbed to a meager 22. If the camera was a key feature of the tablet
