What exactly is this mystery device that just shuffled through the FCC? Well, it's definitely a Motorola tablet and a member of the Xoom family, but beyond that we can't tell you much. The FCC ID, which ends in 56MJ3, makes it clear that this is part of Moto's flagship tablet line, but whether this an upcoming Xoom 2 or simply a souped up variant of the original Honeycomb slate is unclear. The filing makes no mention of cellular connectivity, only WiFi and Bluetooth, but that doesn't necessarily mean there isn't any on board. We do know that, whatever this turns out to be, it sports an HDMI out, 1GB of RAM, a dual-core 1.2GHz CPU, a 1200 x 800 screen and comes in 16, 32 and 64GB varieties. If you're in the mood to dig through the test reports yourself, check out the source link.