I would love this for my dog, she runs in the woods and I like to know where she is. I've tried a Lidar collar but the range is too low. The only other option is a cell phone in a case (which is used by search and rescue) but it's to expensive since you need a cell phone plan, and it's and too bulky to attach to a moving animal.

There is a market for this, I'll help prototype it , someone start a company to track dogs and children (out playing, biking, skiing) :)