Maybe its more of a home centered move, you buy a device that receives and xmits 700mhz, it has a wifi Access Point in it converting it to 802.11bg..

They roll it out over the entire USA, google offers free internet all over the USA.. the catch would be they then are your ISP and know exactly what your looking at on the web and can target ads to your tastes.

If they do that then you will see devices like the n800 popping that receive it.