Could Asus be stealthily getting ready to pop a new tablet device on the market? This latest FCC filing suggests that as a distinct possibility. There aren't too many details with the filing but we see that the device has WiFi, HDMI and a microphone. Could this be a mid-range device of some kind, or maybe a phablet? We have no idea at this point, but we are intrigued and will keep you informed as new details emerge.