Since their crowdfund launch last year, Tile have amassed 50,000 customers and $2.6M in pre-sales, and are about to ship.

In the meanwhile, other’s have jumped on the bandwagon, including Protag Elite, and now Nokia's Treasure Tag, a smart fob that can be paired with a Nokia smartphone so that if either one moves out of range of the other an alarm sounds on both to alert the user that all is not well with their favourite gadget.