Not detecting Palm Tungsten T3?

I'm running Ubuntu 8.10 (Intrepid Ibex), with gnome-pilot 2.0.15, and 
I'm trying to get my T3 to sync. When I go to System>Preferences>PalmOS 
Devices (or run gpilotd-control-applet), I get the first-run wizard.

Device Settings:
Name: Cradle
Type: USB
Timeout: 2
Device: /dev/pilot
(Note: I've also tried using the "usb:" device with the same results.)
Speed: 57600
"Yes, I've used sync software with this PDA before."

When it asks me to connect the Palm, I press the button and nothing 
happens. I can see that /dev/pilot is being created by udev and points 
to ttyUSB0, but gpilotd just doesn't seem to detect it!

Relevant dmesg output:
[ 3610.280012] usb 1-2: new full speed USB device using uhci_hcd and 
address 17
[ 3610.451268] usb 1-2: configuration #1 chosen from 1 choice
[ 3610.459902] visor 1-2:1.0: Handspring Visor / Palm OS converter detected
[ 3610.460014] usb 1-2: Handspring Visor / Palm OS converter now 
attached to ttyUSB0
[ 3610.460067] usb 1-2: Handspring Visor / Palm OS converter now 
attached to ttyUSB1

lsmod shows that the "visor" module is loaded.

I can use pilot-link just fine, by "pilot-xfer -p /dev/pilot -l" after 
pressing the HotSync button.

What's going wrong with gnome-pilot?

Thanks,
David