So says the rumor mill. A “very reliable source” says Microsoft will launch Windows Phone 7 in the U.S. on November 8. Which means we should see some pay-off for the supposed “billions” that are going to be spent to market it. Also, we should expect to see some sort of Windows Phone 7 “birth.” Or at least that’s what I’d be expecting, given that the company just had a funeral for the iPhone.