Another endorsement for the WL-1100C. You just need to make sure it has firmware 1.7.4 or above (most will, mine came with 1.8.2).If it doesn't, updating the firmware is fairly trivial.
http://linux.junsun.net/intersil-prism/http://linux.junsun.net/intersil-prism/firmware/Those pages have the firmware and instructions. You can use the pdaX kernel I built with r198 (http://www.techassassins.com/Zaurus/) (it's probably in the "junk" dir)Also here:https://www.oesf.org/forum/index.php?showto...&hl=modulesInstructions in that thread as well.