You already know most of the spec sheet delicacies that RIM has in store for its PlayBook, but here are a couple more details to complete the picture. The PlayBook will indeed match the iPad in having 16GB, 32GB and 64GB variants available, and will also come equipped with a pretty huge 5,300mAh battery. That'd be a generously proportioned cell for a full-sized laptop, we imagine it'll turn the PlayBook into quite the endurance champ. Beside those tidbits, there's another video appearance by the tablet that we weren't allowed to touch
