livejournal.com has two comms I know of for wardriving. war_driving, and wardrivers. for your pleasure. Though I know of no good linux ported wifi scanner apps as of yet to windows/xp. Airsnort looked like it had a port, but the two ports available don't work. My suggestion:/ Install a small linux install:D Like partition magic a 500meg partition, and add gentoo small version. I know it's like 80 megs. I don't know however how big it extracts to.
Yea Netstumblers is nice. For Pda there is something called MiniStumbler But I prefer PocketWinc.
Kismet does own for unices, and linux flavors. Unix variants are great for software. I trust kismet.
Netstumbler is not going to be able to detect APs with broadcast SSID disabled.
"Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!
Beware the Jubjub bird, and shun
The frumious Bandersnatch!"