However, ptcl has included drivers for their evdo device for mac osx and linux os (e.g ubuntu) on their website for download.
To download the ptcl evo / ptcl evdo device drivers goto: http://www.ptcl.com.pk/downloads.php?pd_id=181
On that page, select the appropriate download for your device and the operating system you’re on
Update: (tip for linux – ubuntu users – thanks to Ahmed Bilal)
Ubuntu users – Please review the comment from Ahmed Bilal to get ptcl evo working for you:
“I have used those drivers in ubuntu and they are of no use! u need to plug the usb and if it doesn’t get detected install the package usb-modeswitch and restart the pc, it will get detected. then u need to configure a connection through the network-manager and it works like a charm!”