If its anything like most modems it should come up as a seril card, in which case it should support the AT spec which most modems ust therefore you just have to work out which /dev it is (one of the tty's and then use the standard modem connect packages to get online, same as a phone
however if its diffrent then you would need the specs on the device, however this looks like all the other gprs/cf cards on the net, do a search in the "general discusions" part of the fourm and you should bring up more than enogh info to get this card working
looks nice and if i could get one for a decent price i would, could you post a link to where you are buying it from>