Sprint has a new mobile broadband device just reaching the market, made by Novatel Wireless. You install the drivers and plug the device into your USB port with a USB cord. It sports an external antenae. It supposedly gives broadband speed and the good news is you can use it on multiple computers unlike an air card which is computer specific. I have had one for a week and it works great. I use it on the bus and take it home and use it on my PC which has eliminated the need for a separate home broadband service.