It was announced at WWDC 2011, by Scott forstall that Apple’s iPhone 4 has become the 2nd most popular camera on Flickr. Nikon D90 was on the top with canon 5d on the 3rd and canon rebel XSi as the 4th. But now iPhone 4 is the most popular camera on Flickr.Now the most popular camera phone ares apple iphone 4 on the first rank, followed by iphone ...