NVIDIA has ended up being the star of Mobile World Congress so far, heading up the processor choice in devices like the HTC One X or LG Optimus 4X HD. A pleasant surprise, however, has been Toshiba's so far still unofficial 7.7-inch tablet, which it briefly teased at CES. It's called the AT270, it runs on a Tegra 3, and NVIDIA let us try what could be one of the more interesting tablets of the show.
