I’m still not decided on whether to stick with the Vodafone 3G mobile broadband or change to Three, but for now I have installed the mobile connect software from the Vodafone site. Since doing that I have noticed a new process and login item called mac_swapperdemon. Apparently this changes from the USB dongle from a memory card to a modem once inserted. I usually try to keep the login items clear but this little guy is persistent so I will need to be sure to uninstall if I do change to Three.
To uninstall you need to have kept the original .dmg file, rerun setup and select uninstall from the dropdown on the first screen.
Taken from http://forums.macrumors.com/showthread.php?t=472441
