Xact, a smarter GPS tracker

GPS Tracking devices only do one thing: broadcast their own GPS location at all times, period. Xact goes one step beyond. First of all, users can benefit from its hardware in conjunction with other devices. For example, they could use its GPS or its GPRS datalink for their computer. It can also be left in an OFF state and turn itself ON upon a shock or a pull on its handle. The device can be tracked via a web interface, and has many more features. The best one: no subscription fee. $250 from Xacttechnology.com