Celestial Jukebox in Japan and South Korea?

An Atlas 3 rocket launched a communications satellite designed to provide 70 audio and video channels to handheld devices in Japan and South Korea. ... The satellite, built by Space Systems/Loral for a consortium of Japanese and Korean broadcast companies, "will bring CD-quality audio and MPEG-4 video and interactive data to palm-sized mobile receivers throughout Japan and Korea," said Jennifer Hodges, a spokeswoman for International Launch Services, a partnership of Lockheed Martin and the Khrunichev Research Center in Moscow. [CNN.com]

I'd like to know more about exactly what the functionality of these devices is.