Though Google's being tight-lipped about the news coming out of its New York offices at today's event, we've got a hunch that it's related to the launch of a new mobile payment service that could be launching in several cities with the help of Sprint's Nexus S 4G. Whatever it may be, though, we'll be in the house to cover all the action -- and we hope you will be, too. Tune in live at 12:00PM Eastern Time.