DG - I looked into getting a mobile broadband card so that I could connect from anywhere. We have Sprint. I thought I could just add another phone to my account and pay an extra $10 per month and as long as we stay under the total family minutes, it would be okay (we don't even come close to using all our minutes each month). Unfortunately, that's not the case. I would have to get a separate plan just for the broadband card because they charge that by Data Usage. The plan would cost about $60 per month and I would be additionally be charged for any data usage over 5GB, which the girl told me would only happen if I download a lot (which I don't).
Needless to say, if I want to use my netbook anywhere outside of my house, I'm going to have to find places with the WiFi sign!