... hi

Exactly what LegoDude said... The Alfa adapter and external antenna pick up an incredible amount of information. Everyone is talking about this GlobalSat BU-353 GPS around here, and think I may pick one of those up soon. Need an actual MacBook first. Been running OS X on a modded Dell Mini9 and ...

Just started with the iPhone myself. It can't get any easier than having your iPhone in your pocket / on your dashboard and collect info as you go.

As for the MacBook, I've been collecting info with Kismac and an Alfa antenna. Still looking for a compatible GPS though...