It's been 2 months I am using Sierra 3G PCMCIA modem in Windows XP. Installation in Windows XP is quite easy, that's why for 2 months I am enjoying using it.
I dont know why this morning I had in mind how to install 3G modem in Ubuntu box. And I remember in installation CD, the seller also providing linux driver but there are no instruction how to install it :(. Yes, I think I have to install it myself.
I am using Ubuntu Gutsy and use the driver for Linux that included in installation CD.
Sierra provide driver for Linux, you can download Linux driver ini this page: