Yes, I'm signed up, and my fiberhood has qualified for connection. Ward Parkway North passed it's 10% quota, and is sitting in 10th place at 14%. I would expect to be near 25% when the pre-reg period is over.
I also toured the Google Fiber demo space in midtown, and this shit seriously flies. Keep in mind that you don't get gigabit speed on wireless since wireless doesn't run that fast yet. So only your hard wired computers will hit those speeds. But it's incredible to think that the speed of your internet is now limited by your wireless router, not the speed of the pipe itself