this section is for all related WiFi issues only... enjoy

Good idea. I thought about this a while ago. Let me add a link here:
For PC Pocket - http://www.cirond.com/pocketWinc.html
For Laptop/Desktop/Notebook - http://www.netstumbler.com/

pocketWinc is a 30 day trial while I believe netstubler is totally free. If you're interested in this topic, these two programs are a must.

ive installd gentoo on my laptop so no netstumbler available for me
but i love kismet its just wow
but win* + netstumbler + gps + ms autoroute = unbeatable
if you find a wlan that fits your interest mark it and you will find it in future without problems ;D

juste post another sniffer / analyser for linux like only (may be you know more):

AirTraf -> http://sourceforge.net/projects/airtraf/
Kismet -> http://www.kismetwireless.net/
MogNet -> http://chocobospore.org/mognet/
SSIDSniff -> http://www.bastard.net/~kos/wifi/
WaveStrambler -> http://www.cqure.net/tools08.html
Wellenreiter -> http://sourceforge.net/projects/wellenreiter/

And if u use a free bsd, this freeware can be useful :

BSD-Airtools -> http://www.dachb0den.com/projects/bsd-airtools.html

Pocketwinc is an excellent tool and well worth the money.