At an event in San Francisco today (1pm Eastern, 10am Pacific, 6pm UK) Microsoft will unveil Windows 9 -- or whatever Microsoft ends up calling it. The event is expected to focus on the Desktop and enterprise side of things, though Microsoft might also show off some of the changes to the Metro/mobile side of things. We'll be covering the event here with a live blog, and photos from our reporter in San Francisco -- but sadly, it seems Microsoft won't be providing a live video stream.