According to The Washington Post, ComcastInteractive Capitalpital, the venture arm of Comcast, has invested an undisclosed amount in a seed round of Cartiza Networks , a Boston-based stealth WiMax startup...the seed round was a big $12.6 million, and investors include Comcast Interactive Capital, Prism VentureWorks and the Business Development Bank of Canada (BDC) ...
Cartiza is developing an Internet Protocol-based "mobile content delivery system" designed to provide "mobile broadband networking, scalable bandwidth and highly sophisticated content management capabilities for voice, data and video."
I think we should be interested in WiMax's projects, the consumers are very interested by this technology and a medium/long time investisment is highly recommanded.