Find Me Spot is a GPS tracking system that communicates position reports through a satellite. If you attended GPSL 2008, you'll be familiar with this tracker, as Bill Brown gave a presentation on it. Bill is doing the coolest stuff, you should get to know him.
With all the talk about the MIT flight that used a cell phone for tracking, I'm wondering about writing an article on using Find Me Spot to track. This would allow someone who does not have an amateur radio license to launch near spacecraft. Of course, the tracking unit would have to go up as a back pack with a Tickle Me Elmo to create a Find Me Elmo.