When i execute "udevadm monitor" on the N900 and press the DS3 button i get this:
UEVENT[1297891634.993652] add /class/bluetooth/hci0/hci0:11 (bluetooth)
UDEV [1297891635.079437] add /class/bluetooth/hci0/hci0:11 (bluetooth)
UEVENT[1297891643.053008] remove /class/bluetooth/hci0/hci0:11 (bluetooth)
UDEV [1297891643.105438] remove /class/bluetooth/hci0/hci0:11 (bluetooth)

i have both sixad and sixaxis support installed. i removed and reinstalled both and rebooted between the removal and new installation.

it seems as if it is trying to add the device and fails. anyone had this issue and fixed it?

Thanks.