The adapters are pulled from WL215s which have had their cards removed. A card (brand being whichever is lying around) can be thrown in for an additional $5 and the shell for an additional $2 (to cover shipping and packaging costs). No cable included (it's a standard B).
orinoco_usb has recently been merged into the mainline kernel (thanks to D. Kilroy).. so these should work out of the post using any kernel v2.6.35+ (ye need fw 6.16, btw).
PM if interested.