http://hraunfoss.fcc.gov/edocs_public/attachmatch/DOC-286566A1.pdf

"Over the objections of television broadcasters and other groups, federal regulators set aside a disputed slice of radio spectrum for public use on Tuesday, hoping it would lead to low-cost, high-speed Internet access and new wireless devices.

The Federal Communications Commission voted 5 to 0 to approve the new use for the unlicensed frequencies, known as white spaces.

A coalition of powerful groups, including broadcasters, Broadway theater producers and sports franchises, hoped to derail or delay the decision. They have argued that their own transmissions — whether from television signals or from wireless microphones used in live music performances — could face interference from new devices that use the white spaces.

But F.C.C. commissioners said in a public meeting on Tuesday that they were confident that enough testing had been done to assure them that interference was not a major risk."

http://www.nytimes.com/2008/11/05/technology/internet/05spectrum.html?partner=rs syahoo&emc=rss

Somehow I think this is not going to work out quite as smoothly as they think. Too many devices and not enough room.

Here's a couple of other links about this.

http://broadcastengineering.com/audio/fcc-chairman-green-light-wsd20081026/

http://broadcastengineering.com/newsrooms/shure-white-space-filing-public-commen t-1024/

Aren't those wireless mics unlicensed, as well? If so, what rights do their users have to complain about interference?