Rumors floating around over the weekend suggested that any tablet announcement made by Microsoft today could involve Barnes and Noble, its latest "strategic partner." According to Business Insider, the bookseller has stated that it hasn't got anything to announce alongside the Redmond company at today's not-so hush-hush event. We're contacting the bookseller to confirm, but what is Microsoft up to? Hit up our liveblog because we'll be there, ready to tell you precisely what goes down later today.

Update: Confirmation has arrived. B&N told us that "we are not a part of their announcement today."