For people who like taking trips into the wilderness, it won't be hard to justify this purchase. This $170 device uses satellite communication, so if you're in trouble you can send a 911 alert, complete with your location, no matter where you are. Better still, you can send an "I'm OK" message to let loved ones know you've safely reached that mountaintop or remote village.
Last updated January 07 2008: 1:09 PM ET