This one, the Netgear Zing, has the distinction of working its magic through a touch-screen LCD display, which makes information about your power, connections, and signal strength clear and accessible.
The real news with the Zing is that it can surf GSM overseas. If you plan to travel, an international plan will get you started. The Zing also has storage space, so it can carry photos and presentations.
Like all other USB modems, this little guy plugs directly into your computer's USB port. Modems are perfect for people who want an easy, lightweight option that doesn't involve setting passwords or worrying if the device is charged.