I have a Symbol Spectrum24 High Rate Wireless Networker 802.11b 11Mbps card in my hand right now. It fits in a PocketPC's CF slot.
Unfortunately I'm in between apartments right now and my Audreys are packed away in storage.
Anyway, if I find a place to move soon I'll get the Audreys out of storage, but meanwhile the Symbol card are for real, and they work fine on PocketPC devices, so if they're based on a standard chipset we ought to be able to get them working on an Audrey.
Also note Tastannin: I personally wouldn't mind filling up the CF slot with a wireless card because then I could easily get to my Linux/Samba shares over the 802.11b connection, which would be even better than storing files on a CF storage card. Faster, unlimited capacity, no need to unplug the card.