Half a year later and a generation ahead, the iPad 4 is here and while it's the same in almost every discernible way to the previous iPad 3, there are a few things absolutely worth discerning. First, it's got the new Lightning connector. Second, it's got a 720p FaceTime HD camera on the front. Third, it's got an all new, all powerful Apple A6X processor inside (and the forthcoming LTE version will have an all new, all international LTE chipset to boot). But can you judge that particular book by this cover? Watch!