Given its size, the iPad 2 is a better photo viewer than photo taker (unless it's acting as a photo booth). And as a photo viewer, it's fantastic. Flipping through photos on the iPad's touch screen pulls you closer to the images than clicking through photos on a laptop or desktop with a keyboard. I recently tried out three photo-browsing apps, a photo-processing app, and a photo-booth app on the iPad. I offer you my thoughts on each.