So, I have a 4 year old Maltese named Cody. He's a handful, a neutered dog that will hump anything and he's easily distracted when he's outside (just like me, haha). Anyway, there's been several times where's he's ran off and we had to have a search party but thankfully he came back. There's an extremely busy street just outside the neighborhood, I really don't even want to think about him going there. He has the Home Again microchip and it's active. But, that only works if someone actually finds him and brings him to a vet that has a machine that can scan/read that microchip. I figured a GPS dog tracker may be a good thing, like I already have for most of my stuff, car, iPhone, iPad, MBP, etc. So why not something more valuable to me? Does anyone have any recommendations on a good GPS for dogs? Remember he's a Maltese, so he is tiny. He's about 15-20lbs so I can't get anything too huge or anything that will stick out. I was googling and I saw this Tagg the Pet Tracker, http://www.pettracker.com/. Anyone have experience with this? Thanks!