Since when udev was updated, we've lost 61-option-modem-modeswitch.rules. We need to pull them from usb_modeswitch-data to recover the lost functionality.
*** Bug 583656 has been marked as a duplicate of this bug. ***
usb_modeswitch-1.1.2-3.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/usb_modeswitch-1.1.2-3.fc11
usb_modeswitch-1.1.2-3.fc11 has been pushed to the Fedora 11 stable repository. If problems still persist, please make note of it in this bug report.