Thanks for the tip on the antennae. I was thinking there might be some concerns there... I mean if they say cell phones can give you cancer... I guess I wouldn't need an antennae while walking anyway. But it would be nice for the car.

I guess it would be best to stay in my car anyway. My GPS unit doesn't work on a hike as it requires being plugged in to my cigarette lighter for 12V power. I wish they had an adapter for that. Maybe there is a battery adapter to plug the cigarette lighter plug into some kind of battery... that would fit in a backpack.

Remember to mute your PDA before you go walking around in a Mall with a lot of APs.