It may be running on Android, though a lack of buttons on its front face makes that unlikely. If it takes Windows Mobile 6.5, it'd need a Start button somewhere too. So that leaves... Symbian? Or maybe they've innovated some buttons somewhere else.
Either way, we'd like to see something slick like this out of Moto, but we're not clinging to the edge of our seats. Speaking of, check out the hottest five phones we saw at Mobile World Congress.