The link (which does not seem to be correct - URLs on non-Windows servers are usually case sensitive so I think you need to use http://cox.com/giglife , not the version with capitalization) doesn't show my anything other than a spash screen - nothing useful about when it will be in my area.
So I googled and found http://www.dailypress.com/business/tidewater/dp-tidewaterbiz-cox-20141029-story.html ... very interesting ... all new homes in all Cox markets will have it starting in 2016.
I was hoping we would get gigabit in my area. I'm looking to move in the next year or so, so I know what one of my requirements is going to be. ;)