Though it has not made much of a splash in the main stream news, Verizon is quietly rolling out amazingly fast fiber optic services to homes in select areas.
With speeds of 12-50Mb, this could be the future of broadband internet access.
Not to be outdone, Comcast may have something more interesting up their sleeve. In an off the cuff remark made in the following news story, there appears to be a hint of Comcast offering speeds up to 200Mb!
So far, I have found no mention on any Comcast run sites, but the idea sounds plausible, and should be easier to deploy that fiber optic lines. More on this as information becomes available!