Anybody know if we can connect a 270 to a pocket landline modem? I'd love to use the 270 for email/web when I'm out of my service area. I did find a company now offering a cable adapter to connect to serial devices, such as GPS receivers, modems. (Website: http://www.pcables.com/cat1.html ). Now I want to know if can use a portable/pocket modems I've been finding on the web. Thanks for your help.