Looks to me like linux uses the b44 driver with the Acer Travelmate 4001 so you could be a beta tester of George's driver :-)
We have a load of hp xw4100 PCs which are equipped with Broadcom NetXtreme 5782 cards; (5782 is helpfully the PCI DID). These are supported by the b44 driver too so I will do some testing also... -Steve
