My stepdad Bob and stepsister Heather are hiking a section of the Pacific Crest Trail this month. Bob signed up for a location service that emails his friends his current location and a simple status message. I just got the first one. Here's what it looks like, including the link to the map:

SPOT Check OK. All is well !! Bob
ESN:0-7425741
Latitude:44.1548
Longitude:-121.8187
Nearest Location: Belknap Springs, United States
Distance: 19 km(s)
Time:07/31/2008 08:04:40 (US/Mountain)
http://maps.google.com/maps?f=q&hl=en&geocode=&q=44.1548,-121.8187&ie=UTF8&z=12&om=1