For the record, on Fedora 13 both my devices (E270 and E1820) work perfectly. Connection is established within seconds and on every attempt, unlike Ubuntu which may take a long time to connect and very often fails to connect at all, and E1820 also required installing usb_modeswitch to make it even get detected and I also had to disable PIN code request because NetworkManager connection status started flickering otherwise and the device wouldn't work. I had neither of these two problems on Fedora either.
For the record, on Fedora 13 both my devices (E270 and E1820) work perfectly. Connection is established within seconds and on every attempt, unlike Ubuntu which may take a long time to connect and very often fails to connect at all, and E1820 also required installing usb_modeswitch to make it even get detected and I also had to disable PIN code request because NetworkManager connection status started flickering otherwise and the device wouldn't work. I had neither of these two problems on Fedora either.