Horror, shock, surprise! Microsoft CEO and prime fanboy of all things Windows and developer-related, Steve Ballmer, will be the keynote speaker at Microsoft's New York launch event for Windows Phone 7. He'll be joined on stage by AT&T's Ralph de la Vega and when the pep rally is over, we're promised opportunities to finally handle the official incarnations of retail Windows Phones for ourselves. We know all this because Microsoft has just dropped a kind little invite into our inbox urging us to attend its October 11 get-together. We will, of course, be there live, but don't forget Microsoft's also holding a