Surface 2 looks great but it's Achilles Heel is Windows RT. How can the Surface compete against Bay Trail tablets priced the same but running full Windows? Here's an example of the challenge Surface 2 faces: 300-PPI Sharp tablet has Bay Trail inside, waterproofing outside - The Tech Report 300-PPI Sharp Mebius Pad tablet has Bay Trail inside, waterproofing outside Sharp's IGZO display panels have already worked their way into high-PPI notebook screens and 4K desktop monitors. Now, one has popped up in a Windows tablet of the company's own design. The Mebius Pad squeezes a 2560x1600 display resolution—the same pixel layout typical of 30" monitors—into a panel measuring just 10.1" across. The resulting pixel density works out to 300 PPI, matching Google's Nexus 10 tablet. Unlike the Android-based Nexus 10, the Mebius Pad runs the full version of Windows 8.1. Intel's Bay Trail-based Atom Z3770 provides the necessary x86 compatibility. The quad-core SoC is currently the fastest member of the Bay Trail lineup, and it's the same chip we tested at IDF. In an interesting twist, the Mebius Pad has robust protection against liquid and dust ingress. It passes the IPX5 waterproofing test, which sprays the device with water jets, and the IPX7 test, which submerges the thing in one meter of water for 30 minutes. The tablet also meets the IP5X standard for dust protection. There's no word on shock protection, though. The Mebius Pad appears to be weatherized rather than ruggedized. Like other contemporary tablets, the Mebius Pad has dual cameras and 802.11n Wi-Fi. LTE connectivity is also on the menu.