This is a very cool idea, I only wish I'd have thought of it first... hehe. The availability of the technology that powers the rugged, GPS-enabled cell phones that are popping up all over the place definitely helped bring this gadget to market. I think PetsMobility's got a winner on their hands here...

"The ability to track a lost pet has most dog lovers excited. The PetCell has a 'call owner' button in case Rover strays. It also includes assisted GPS, or A-GPS, which works indoors, allowing dog owners to map their pup's coordinates from any web-enabled device or by dialing a voice-enabled call center."