Hey, remember that mystery tablet NVIDIA CEO Jen-Hsun Huang was pimping a mere couple of weeks ago? Well, it's made its way to London, and woe betide the Engadget editor who didn't get a hands-on with such an exclusive piece of hardware. So what we're looking at here is a Windows CE-powered, resistive touchscreen display spanning somewhere around 15 to 16 inches, with the same Tegra internals as may be found in the Zune HD or one of them smartbook devices. As we reported earlier, the company behind the machine is ICD, and this particular unit was built to try and entice T-Mobile into placing a few orders.

Being a prototype, the device on hand was quite literally rough around the edges, but what we saw was appetite-whetting. The overall construction is under an inch thin, 720p video playback was excellent, and there's even a terrific-looking wireless recharge station cum base accessory -- think of Palm's Touchstone, only enlarged and magnetized to the point where it can support the whole tablet in an upright position. If somebody marries all that hardware potential with the Stantum multitouch firmware and a more finger-friendly OS, this thing just might make the whole Apple tablet brouhaha utterly irrelevant. Video after the break.