IPMobile, a new wireless mobile operator in Japan backed by Internet Initiative Japan (IIJ), CSK Group, Shoeisha Co and the Rakuten Group, has begun testing Time Division Code Division Multiple Access (TD-CDMA) technology in Tokyo, promising download speeds of up to 42.2Mbps. IPMobile had originally planned to launch the data-centric service in three cities in October 2006, but was forced to scale back to a launch in Tokyo-only. It now plans to launch a fully-fledged commercial service in 2007, six months later than planned. The newcomer holds one of three licences recently issued by the government to provide cellular services in Japan. However, it faces a difficult task in a crowded domestic marketplace. All three of the country’s primary mobile network operators already offer high speed mobile data services. NTT DoCoMo and Softbank Mobile are offering 3.6Mbps downloads via High Speed Downlink Packet Access (HSDPA) platforms on their respective W-CDMA networks, while KDDI Corp is offering a similar download service over its CDMA2000 1xEV-DO Rev A network.