Tile uses what’s called a community network. However, its really only useful within a urban or dense populated area, assuming others have the app and are open to helping you find your lost or stolen item.
I think both of these products and others that are similar are still a few year away.
The innovation and technology are there,(for example Find my iPhone app) but how it can be used and what it can be used with are not there yet.
Ideally, we would all want to be able to hide this very small chip in our Domino XL.