They actually started in our development (which is 20 yrs old now) in the fall of 2007 and there was att trucks swarming for a couple of months setting up the required equipment. Then during december of 2007 there was 2 people (guy & girl) went to each house to get people signed up. I was the 3rd person and signed up on the spot and they came Jan 15th 2008.
I had had Direct TV for 10 years, when they turned it on I could not believe the difference it was just awesome. Even the router is heavy duty, I can take my laptop to the end of the cul-de-sac and still get strong signal for wifi.