NTT DoCoMo of Japan has just added a trio of handsets to its 3.6Mbps HSDPA line, giving consumers three options beyond the Samsung offering. Fujitsu, Motorola and NEC have all jumped on board with the Japanese mobile provider, designing their cell phones in partnership with DoCoMo.

HSDPA has a theoretical speed limit of 14Mbps, not 3.6Mbps, which is the best that any company has achieved thus far with their prototypes handsets. As you can tell by the picture, all three companies – Fujitsu, Motorola, and NEC – have opted for the standard clamshell design, so don’t expect anything to turn heads anytime soon.

NTT DoCoMo unveiled these teaser pics in anticipation for the 3GSM World Congress in Barcelona which opens its doors in just under two weeks. Expect some firmer details at that show as DoCoMo prepares to unleash HSDPA services sometime between July and September of this year.