What does one need to do/buy if they want to use the wifi?
I would like to know as well. The antenna connector is slightly larger than the connector for my Alfa USB Wireless adapter, with a much coarser thread pitch. It is smaller than the connectors on my wrt54g. I believe it to be an SMA-RP connector, but need to find a better picture (with scale) to be sure.
Cheers
RP-SMA is a standard, at least in EU.