This is a pretty neat GPS tracker I stumbled across on Kickstarter. I know there is always a lot of talk about GPS trackers on UAS to help recover after a fly-away. This seems like a decent device, coming in at 27g, and also using GSM cell-phone technology at a low monthly cost ($5 for backers, $10 after launch) it might be a worthy investment, $69 gets you a the device and a year of service.