Please be aware that the MTN HSDPA network, as accessed with any HUAWEI modem "stick" is a veritable botnet.
If you intend to use this service, make sure you have some sort of hardware or software firewall in place, especially in areas such as Rosebank.
My laptop has been infected over three times now with that bitch virus UNWISE_.EXE, and that's without even opening a browser window, they get in via RDP or by exploiting a vulnerability in Windows XP SP3. Configuring Windows Firewall, solved the problem.
Mean time to infection was 3-10 minutes, all you needed to do is just be connected, not even checking e-mail or opening a web browser.
Since I installed a firewall in conjunction with Windows Firewall, the problem stopped! No reinfection of my laptop.