Steve Ballmer's promised "over 500" new features in the next version of Windows Phone update and hey -- we'll be live at Tuesday's preview event to count them all. We're expecting this one to be mostly software-focused, but we're hoping we'll hear a little something about Nokia as well. Can Microsoft kick this thing into gear? It all starts right here at 10AM Eastern on Tuesday (tomorrow), so prime your browsers and get ready to find out.

Read the liveblog right here!