Ubuntu 7.04
BT Voyager 1055 Wireless USB
I believe it's a Broadcom bcm43xx chipset of some sort, possibly bcm43ug, though what information I found through googling didn't seem to help much. Most promising site seemed to be http://bcm43xx.berlios.de/ but I got the feeling USB wasn't yet supported :(
If anyone has had any luck using wireless USB in linux, particularly BT voyager or broadcom 43xx chipsets that'd be a good start :)