The NICT just released its world's 1st mobile terminal in TV White spaces
The National Institute of Information and Communications Technology (NICT) has developed what it called the "world's first portable-size Android tablet terminal that enables radio communication in TV bands". This tablet terminal is originally based on an off-the-shelf terminal and a frequency converter newly developed by NICT is implemented for utilizing TV white spaces. Radio communication in both TV and 2.4 GHz bands is available with an original WLAN system (IEEE802.11b/g).
In addition, this tablet terminal can operate in the frequency considered not to interfere with TV broadcasts, and can automatically select the optimal frequency according to data traffic, etc. through control by the network manager. It also includes a function to display the white-space availability of each channel and the terminal location on a map by acquiring information on primary users (TV broadcasters) from the white-space database