Hi guys! Im building an application where I want to be able to have 3 USB UMTS modems in one computer.

Does anyone have experience in using several modems at the same time?
I also want them to be able to be up and runninng at the same time,each connected to a different network through VPN tunnels.

So far, I have connected two Option Globetrotter Mini PCI Express cards with USB cradles (this is the option embedded...