If you want to know where your car or plane or spouse has been.
http://sellout.woot.com/sale/21678
Windows only, but hey, $20!
http://sellout.woot.com/sale/21678
Windows only, but hey, $20!
This one is "non-real time" which works good for our recreational flying needs.
I'm also interested in getting ideas for a near real time solution to track my delivery tucks (just 2 of them, but helpful to know which end of the DFW metromess they are at.)