Microsoft CEO Steve Ballmer allegedly was misspoken saying Windows 8 is coming in 2012. So MS will definitely demo a Windows 8 tablet PC next week, Fast Company news reported.

According to Bloomberg, demoing will happen possibly when Windows president Steven Sinofsky speaks at the AllThingsD conference, or when VP Steve Guggenheimer speaks at the huge Computex fair in Taipei.

This is a mystery, though it's worth noting that Ballmer himself did mention last week that Microsoft is in a "race" and though it's doing "pretty well," the company needs to push Windows very quickly into a variety of new form factors.

Though nobody knows know who the manufacturer is yet, the tablet is apparently running Nvidia's ARM-based Tegra chip, as many of the current crop of tablets do.