I take a slightly different approach. As a little background, i used to work for mp3car.com. specialized in "car computing"
My set-up at the time was as follows:
Mac mini - bootcamped with xp pro
powered by a p2140 and macpac power kit
for my viewing pleasure I fabbed a 7in touch screen into my dash.
Now most other people in the hobby usually tether their phone to the computer for internet, or use a 3g solution, but since i was lazy, if i ever needed internet i would drive around until i found a strong unsecured signal. Using the car "front-end" software you can see all visible hotspots. If you find a good one, you can use the gps program and map the location as a favorite.
Now I have moved this in a new direction. In the baltimore DC area, wimax is now available. I was thinking of reverse wardriving. Using my wimax connection and my Jasager hacked fon, supply the surrounding area with fast internet and maybe see whats going on in the middle. B)
This is super easy to integrate into the car. If I am not mistaken the fon uses +5v, and wimax can use an express card or the home modem (12v). The nice thing about the home modem is that you can hook an external antenna up to it.
