[Skunkworks] Internet over TV white space

Saw this piece being flogged on the interwebs and was just wondering what technology this is and why isnt it mainstream? http://www.prnewswire.co.uk/news-releases/microsoft-teams-with-the-government-of-kenya-and-indigo-telecom-to-deliver-low-cost-solar-powered-broadband-access-using-cutting-edge-tv-white-space-technology-189739611.htm<http://www.prnewswire.co.uk/news-releases/microsoft-teams-with-the-government-of-kenya-and-indigo-telecom-to-deliver-low-cost-solar-powered-broadband-access-using-cutting-edge-tv-white-space-technology-189739611.html> Also how does the CCK fit in and what frequency do they use? -- Regards, Mark Mwangi markmwangi.me.ke