Just curious...visiting a friend for the week who does not have broadband, but I booted up my powerbook and airport found a network to join that does not require a password. Two questions: 1.) Can who ever the network belongs to tell that I'm connected? 2.) Can the person running the network potentially view the data I'm transfering (e-mail, account passwords, credit card numbers, etc.)? In short, is there a downside to using someone else's WiFi hotspot? I'm not paronoid...just curious. Thanks for any insight.