On Jan 3, 1:23 pm, chris wrote:
I wonder how hard it would be to do a DIY SPOT tracker.
Use a cell phone/Blackberry with built in GPS or one with a blue tooth
GPS connection.

As long as you're soaring in metro areas or along busy roads, that
would work just fine. Check out the thread about analog mobile
service going away in a month (in the USA).

There's also some good Ham radio solutions out there.

The beauty of SPOT is that it's using satellites for both positioning
and uplinking the information, so no need for an ground based
infrastructure. And it's relatively inexpensive.

-Tom