Pocket-Lint had a bit of a chat with Microsoft's UK top man, Ashley Highfield.
Apparently, there is no plan to do a tablet OS until the company can come up with something to distinguish itself from the competition. That's fair enough, though I think it's better to aim for usable, rather than just 'different'.
They already have a good tablet OS: Windows Phone.
Apple's iOS is the same on both iPad and iPhone, only the screen's bigger. What's stopping MS from deploying WP7 (suitably modified, of course) for 7-10" tablets?
In principle. Let's overlook the massive shortcomings of the platform.