Its routine FCC appearance from a few months back hinted that it would be officially launching sooner rather than later -- and today, our dear friends, marks the day the GBook formally joins the Archos Arnova family. The 7-inch, Ice Cream Sandwich tablet / eReader likely won't excite many with its run-of-the-mill spec sheet, which consists of a 1GHz Cortex A8 CPU, 1GB RAM, 4GB of built-in storage, 1080p video playback and a meek s