Hewlett Packard's Slate line of Android tablets just barely missed their November deadline for retail launch. The company's latest take on tabs are finally here, however, and all you have to do is head over to its product page to order one. There, you'll find the seven-inch Slate7 Plus and Slate7 Extreme going for $150 and $200 respectively, while the eight-inch Slate8 Pro is $330. Why the differences in price? Well, the Slate7 Plus gets by with an NVIDIA Tegra 3 powerplant and a paltry 8GB of storage, while the Slate7 Extreme packs Tegra 4 silicon and 16GB inside. Naturally, the Pro provides extra screen real estate plus the same Tegra 4 and 16GB of internal storage. The extreme 7-incher is already out of stock, though, so you might want to jump on the other two lest those follow suit.