SNIF Tag is the revolutionary dog tag that lets you monitor your dog's activities remotely. It even includes social networking. Woaaaa! I want one for my cat! "Monitor your dog's activity while you're away. Keep in touch with his friends and yours. Share helpful information and pet tips online. And get connected to your community. It's hi-tech, it's hi-style, easy to use, and completely customizable."
So how does it works? Well they use the uberbadge technology developed at the MIT Media Lab, basically when a dog meets with a dog who has a tag and is a friend, it blinks! Also you can know the owner's dog and find out their owner online...
Thank you Nan Wei!