The card they sell here in the US is the Sierra Wireless U860 which is quadband 850/900/1800/1900 which will do UMTS/3G at any of those frequencies but DOES NOT support UMTS/3G in the rest of the world at 2100Mhz. In Europe, even if 3G exists, you'll be on EDGE or GPRS. It also won't work in Japan at all as that's the only frequency they use. The U850 is is quintuple band. It does EDGE at 850/900/1800/1900 and UMTS/3G at 2100Mhz. This card will do 3G in Europe, Asia and Japan, and EDGE/GRPS in the US. I'm assuming there'll be one card that is UMTS capable at ALL frequencies for the next generation. For now, if you want 3G everywhere, you need two.