C.D.M.A. 1xEV-DO

"PLENTY of technologies can get you online wirelessly these days, but there's always a catch. Wi-Fi Internet hot spots are fast and cheap, but they keep you tethered to the airport, hotel or coffee shop where the hot spot originates. A Bluetooth cellphone can get your laptop online, but at the speed of a slug. And smoke signals - well, you know. The privacy issues are a nightmare."

Beyond Wi-Fi: Laptop Heaven but a Price

- Adam