Forget glasses-free 3D (they were doing that well before the rest of the world), the latest trend in mobile over in Japan is water-proof devices. From smartphones to tablets, nearly every big-name product from companies such as Sharp and Fujitsu seem to be getting protection in one form or another from liquids. Perhaps it is a bit wetter in Japan than I realize, or maybe it is more commonplace to take devices to the beach or use them during a bath. Actually, for the Fujitsu Arrows Tab 2 (F-01D), a slate available with LTE connectivity through NTTT DoCoMo, using the device during a bath is one of its main marketing angles. And here it is taking a bath of its own. The Fujitsu F-01D is a 10.1-inch tablet with a dual-core TI OMAP 4 CPU.