Help! Here's the dillio. I have airport extreme card installed in my new PBG4. I have the base at home. So, when I am away from home, how do I access wireless internet connection? I know you can do this at airports and at some coffeeshops, such as Starbucks, but exactly how do I do this? What settings must I use? Someone mentioend something about accessing a firewall? Huh? What is this?

Today, while on my lunch break, I parked near a Starbucks hoping I could somehow get wireless internet access. Nope. Didn't work. Also, how about a wireless connection in a hotel room? Is this possible? Help!!!