Well, T-Mobile has unlimited GPRS internet for $19.99 when you have a voice plan through them, and they do, and I'm contemplating a Bluetooth smartphone like the 3650 or T610, just buying it unlocked from somewhere like gsmphonesource.com, and if I've got Bluetooth-compatible computers (i.e. PowerBook 12", or iMac with BT dongle), and there is support for using the phone's GPRS connection as your network, wouldn't that work and be like unlimited wireless internet anywhere that there is T-Mobile service? But I guess the hook is (a) coverage, though that still beats 250 ft WiFi networking, and (b) support for using the 3650 GPRS (not dialup) as a network connection in Mac OS X. Could it work? Has anyone tried this?