Tom Bissell tackles the topic in his semi-academic critique of video games as a medium. There’s no filter here, and it can be a bit oblique (it feels like he’s working through his own understanding as he writes instead of presenting the final truth nuggets up front) but Bissell spits grand truths about the massive achievement of games like GTA IV, while also acknowledging what a brain dead time sink they can be. It’s a book about a man at odds with himself, trying to pin down a medium that’s taking over faster than anyone can quite comprehend.
The first generation iPad had no camera; the iPad 2 has a front VGA camera and a rear-facing 720p camera, both capable of still images (but these are only taken at a low quality megapixels) and 30 fps video. The rear-facing camera has a 5× digital zoom for still images only. Both shoot photo and video in a 4:3 fullscreen aspect ratio, unlike the iPhone 4 , which shoots in a 16:9 widescreen aspect ratio. Unlike the iPhone, the iPad does not support tap to focus, but does allow a tap to set auto exposure.  The cameras allow FaceTime video messaging with iPhone 4, fourth generation iPod Touch, and Snow Leopard , Lion , and Mountain Lion Macs .