This is fascinating stuff.

I am still thinking about how to get this script working on my N900 and about where it should send the file to, but I'm also wondering if we could have a little more information included in the file before it's sent. Nearby wireless AP for example. I know that iwlist wlan0 scan will give me MAC addresses and power levels and I can then use something like http://outflux.net to /geoloc/ to get a street.

Does this sound possible or have I missed the point?