Electric Pig has compiled some Flickr stats as a rough benchmark of how many people are using their iPad 2 camera, and it would seem that the iPad 2 lags far behind other Apple devices with cameras. According to Flickr’s daily average user stats, only 22 Flickr users out of over 40 million are using their iPad 2 camera to take shots and upload them to Flickr on average each day. In contrast, at the other end of the scale we have the iPhone 4 with 4,391 Flickr uploads, the iPhone 3G with 3,316 uploads, and the iPhone 3GS with 1,949 uploads on average per day. Electric Pig also compares the total number of images taken with the devices uploaded to Flickr, with the number of iPhone images being 51,331,761, and the number of iPad images being just 12,570. Of course the iPad 2 has been out no time at all in comparison to the other Apple devices, but even so, it does seem like a very low figure, but hardly surprising in a way, as probably the majority of people are using the iPad 2's camera for FaceTime and not much else.
Source: Just how many people are using the iPad 2 camera? (Answer: Not many) | Electricpig