When HP announced its first Android tablet, the Slate 7, we were surprised (and a little disappointed) to see the company attacking the low end of the market. Where were the high-end tablets, we wondered? What about some big-screened models? Or medium-sized ones? Turns out, HP was saving them all for the holiday shopping season. The company just announced four Android tablets, ranging in size from 7 to 10 inches. Two have Tegra 4, two can be had with 4G, and one has a stylus in the box. On top of all that, HP also introduced two more Windows tablets, including a 10-inch slate and an 11-incher with a keyboard dock. All will go on sale in November, though with the exception of one model HP isn't revealing pricing yet. For now, though, best if you study up on the specs: there's quite a bit to unpack here.