Meanwhile, Sweden is soaking up body heat from public places to help heat buildings, China unveiled plans for a futuristic eco city, and several offices in Minnesota flipped on a set of souped-up ceiling lights capable of broadcasting wireless internet.

ENGADGET: Inhabitat's Week in Green: sexy green cars, glass strong as steel, and Tianjin's Eco-City revealed

In this instance, these bands have been reserved for digital terrestrial TV broadcasting and wireless microphones.

ENGADGET: UK regulator wants white space wireless service in 2014, starts trials this fall

CNN.com turned to Bob Schukai, the vice president of wireless and broadband technologies for Turner Broadcasting System -- of which CNN is a division -- for some advice.

CNN: Navigating cell phone headaches overseas

Yet too much of our wireless spectrum remains in the grip of the broadcasting industry.

FORBES: A Declaration of Innovation

Like many cellular technologies, mobile TV standards differ by region, forming an alphabet soup of acronyms: wireless technology company Qualcomm 's MediaFLO in the U.S., DVB-H (Digital Video Broadcasting for Handhelds) in Europe, T-DMB (Terrestrial Digital Multimedia Broadcast) in Korea, and ISDB-T (Integrated Services Digital Broadcasting - Terrestrial) in Japan and Brazil.

FORBES: Magazine Article