We've heard an awful lot about a Windows tablet OS this past year, with stirrings of a 2012 launch
-- heck, even Steve Ballmer's fanned the flames
of speculation -- and now the rumor mill's been set in motion with word of an impending preview expected next week. According to Bloomberg
, three sources have confirmed Microsoft's plan to flaunt the much-anticipated UI, possibly at upcoming appearances at AllThingsD and Computex. The showcase is supposedly set to run the touchscreen-enabled software on a Tegra-equipped machine. We'd previously reported on stirrings of a June demo
. Considering all the evidence that's stacked up over the past few months, we'd say 2012 is looking like a rather practical target.