Think of it as social networking for the navigation crowd. The TomTom GO 720 can create a network of users who can share navigation data with other users, including instances such as sudden road closures. The device has the TomTom voice-recognition feature as well as traffic and weather forecasts, so most navigation needs are right at your fingertips. You can customize your map to your specs on-the-spotl, then upload the data, enabling all to feel your pain as you wait for the traffic to clear.