Has anyone managed to get the Defy working on the USB port under Ubuntu Maverick?
I plug it in and it is ignored by Ubuntu: no /dev/ttyUSB0 is made.
I tried sudo mknod /dev/ttyUSB0 c 188 0 but that didn't work, although there is now a ttyUSB0 in the dev directory, Wammu still cannot find the phone.

dmesg is a bit confusing to me:

[ 8727.488198] tg3 0000:09:00.0: irq 43 for MSI/MSI-X
[ 8727.521900] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 8727.600862] iwl3945 0000:0c:00.0: Error setting Tx power (-5).
[ 8727.602566] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 8734.942715] wlan0: authenticate with 00:26:5a:ba:bb:ef (try 1)
[ 8734.946423] wlan0: authenticated
[ 8734.946491] wlan0: associate with 00:26:5a:ba:bb:ef (try 1)
[ 8734.951490] wlan0: RX AssocResp from 00:26:5a:ba:bb:ef (capab=0x411 status=0 aid=1)
[ 8734.951498] wlan0: associated
[ 8734.958411] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 8745.872111] wlan0: no IPv6 routers present
[ 8850.792174] usb 4-1: USB disconnect, address 2
[ 8850.792550] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[ 8850.792595] ftdi_sio 4-1:1.0: device disconnected
[ 9463.133957] usb 1-7: USB disconnect, address 4
[11912.004216] usb 1-7: new high speed USB device using ehci_hcd and address 5
[11912.139521] scsi3 : usb-storage 1-7:1.0
[11913.141389] scsi 3:0:0:0: CD-ROM Motorola MB525 0001 PQ: 0 ANSI: 2
[11913.146320] sr0: scsi3-mmc drive: 0x/0x caddy
[11913.146682] sr 3:0:0:0: Attached scsi CD-ROM sr0
[11913.146950] sr 3:0:0:0: Attached scsi generic sg1 type 5
[12428.580176] usb 4-1: new full speed USB device using uhci_hcd and address 3
[12428.773500] ftdi_sio 4-1:1.0: FTDI USB Serial Device converter detected
[12428.773584] usb 4-1: Detected FT232RL
[12428.773591] usb 4-1: Number of endpoints 2
[12428.773597] usb 4-1: Endpoint 1 MaxPacketSize 64
[12428.773603] usb 4-1: Endpoint 2 MaxPacketSize 64
[12428.773608] usb 4-1: Setting MaxPacketSize 64
[12428.775573] usb 4-1: FTDI USB Serial Device converter now attached to ttyUSB0
[13107.719558] usb 1-7: USB disconnect, address 5
[13111.876093] usb 1-7: new high speed USB device using ehci_hcd and address 7
[13112.011529] scsi4 : usb-storage 1-7:1.0
[13113.009009] scsi 4:0:0:0: CD-ROM Motorola MB525 0001 PQ: 0 ANSI: 2
[13113.013427] sr0: scsi3-mmc drive: 0x/0x caddy
[13113.015488] sr 4:0:0:0: Attached scsi CD-ROM sr0
[13113.017776] sr 4:0:0:0: Attached scsi generic sg1 type 5
[13206.416217] usb 4-1: USB disconnect, address 3
[13206.416612] ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
[13206.416654] ftdi_sio 4-1:1.0: device disconnected
[14037.948151] CE: hpet increased min_delta_ns to 20113 nsec
[14598.773850] usb 1-7: USB disconnect, address 7
[14599.092064] usb 1-7: new high speed USB device using ehci_hcd and address 8
[14600.249880] usbcore: registered new interface driver cdc_acm
[14600.249885] cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters
[14608.832340] usb 1-7: usbfs: process 1282 (gvfs-gphoto2-vo) did not claim interface 0 before use
[14616.832186] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd gvfs-gphoto2-vo rqt 33 rq 102 len 0 ret -110
[14632.832190] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd gvfs-gphoto2-vo rqt 33 rq 102 len 0 ret -110
[14648.832286] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd gvfs-gphoto2-vo rqt 33 rq 102 len 0 ret -110
[18445.568734] usb 1-7: USB disconnect, address 8
[18451.048073] usb 1-7: new high speed USB device using ehci_hcd and address 9
[18459.672428] usb 1-7: usbfs: process 1282 (gvfs-gphoto2-vo) did not claim interface 0 before use
[18467.672160] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd gvfs-gphoto2-vo rqt 33 rq 102 len 0 ret -110
[18483.672176] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd gvfs-gphoto2-vo rqt 33 rq 102 len 0 ret -110
[18499.672181] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd gvfs-gphoto2-vo rqt 33 rq 102 len 0 ret -110
[19105.985006] usb 1-7: USB disconnect, address 9
[19125.552117] usb 1-7: new high speed USB device using ehci_hcd and address 10
[19133.870286] usb 1-7: usbfs: process 1282 (gvfs-gphoto2-vo) did not claim interface 0 before use
[19141.868115] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd gvfs-gphoto2-vo rqt 33 rq 102 len 0 ret -110
[19157.868122] usb 1-7: usbfs: USBDEVFS_CONTROL failed cmd gvfs-gphoto2-vo rqt 33 rq 102 len 0 ret -110
[25074.600073] usb 1-7: USB disconnect, address 10
[27073.840096] usb 1-7: new high speed USB device using ehci_hcd and address 11
[27186.216667] usb 1-7: USB disconnect, address 11
[27192.456167] usb 1-7: new high speed USB device using ehci_hcd and address 12
[27419.219097] <30>udev[10527]: starting version 167
[27431.907950] usb 1-7: USB disconnect, address 12
[27436.452228] usb 1-7: new high speed USB device using ehci_hcd and address 13
[27966.683791] usb 1-7: USB disconnect, address 13
[27967.024191] usb 1-7: new high speed USB device using ehci_hcd and address 14
[27967.158682] scsi5 : usb-storage 1-7:1.0
[27968.157206] scsi 5:0:0:0: CD-ROM Motorola MB525 0001 PQ: 0 ANSI: 2
[27968.163254] sr0: scsi3-mmc drive: 0x/0x caddy
[27968.163636] sr 5:0:0:0: Attached scsi CD-ROM sr0
[27968.169885] sr 5:0:0:0: Attached scsi generic sg1 type 5
[28564.134536] usb 1-7: USB disconnect, address 14
[28570.408173] usb 1-7: new high speed USB device using ehci_hcd and address 15
[28570.542362] scsi6 : usb-storage 1-7:1.0
[28571.540948] scsi 6:0:0:0: CD-ROM Motorola MB525 0001 PQ: 0 ANSI: 2
[28571.545748] sr0: scsi3-mmc drive: 0x/0x caddy
[28571.549751] sr 6:0:0:0: Attached scsi CD-ROM sr0
[28571.550330] sr 6:0:0:0: Attached scsi generic sg1 type 5
[28844.178725] usb 1-7: USB disconnect, address 15
[28844.196570] cdrom: issuing MRW background format suspend
[28896.880202] usb 1-7: new high speed USB device using ehci_hcd and address 16
[30854.490991] usb 1-7: USB disconnect, address 16
[30854.828125] usb 1-7: new high speed USB device using ehci_hcd and address 17
[30854.962389] scsi7 : usb-storage 1-7:1.0
[30855.960969] scsi 7:0:0:0: CD-ROM Motorola MB525 0001 PQ: 0 ANSI: 2
[30855.966089] sr0: scsi3-mmc drive: 0x/0x caddy
[30855.966467] sr 7:0:0:0: Attached scsi CD-ROM sr0
[30855.972515] sr 7:0:0:0: Attached scsi generic sg1 type 5
[30919.813045] usb 1-7: USB disconnect, address 17
[30925.768180] usb 1-7: new high speed USB device using ehci_hcd and address 18
[30925.902653] scsi8 : usb-storage 1-7:1.0
[30926.901376] scsi 8:0:0:0: CD-ROM Motorola MB525 0001 PQ: 0 ANSI: 2
[30926.905289] sr0: scsi3-mmc drive: 0x/0x caddy
[30926.905662] sr 8:0:0:0: Attached scsi CD-ROM sr0
[30926.906104] sr 8:0:0:0: Attached scsi generic sg1 type 5
[31332.375626] usb 1-7: USB disconnect, address 18
[31332.696198] usb 1-7: new high speed USB device using ehci_hcd and address 19
[33880.943035] usb 1-7: USB disconnect, address 19
[35358.712159] usb 1-7: new high speed USB device using ehci_hcd and address 20
[35604.798521] usb 1-7: USB disconnect, address 20
[35609.228168] usb 1-7: new high speed USB device using ehci_hcd and address 21
[36471.406988] usb 1-7: USB disconnect, address 21
[37355.840070] usb 1-7: new high speed USB device using ehci_hcd and address 22
[38229.011421] usb 1-7: USB disconnect, address 22
[38233.360199] usb 1-7: new high speed USB device using ehci_hcd and address 23
[40306.526967] usb 1-7: USB disconnect, address 23
[42450.684191] usb 1-7: new high speed USB device using ehci_hcd and address 24
[43981.165267] Bluetooth: Core ver 2.15
[43981.165309] NET: Registered protocol family 31
[43981.165312] Bluetooth: HCI device and connection manager initialized
[43981.165316] Bluetooth: HCI socket layer initialized

I've been at it since about 4pm and it's now coming up to 3:30 am - so just about 12 hours trawling the net and getting nowhere.