This isn’t a real product yet, but it seems that Nokia has a patent for a metal-detecting phone. While it was originally designed to assist folks with bad hearing, the induction coil in the phone can double as a metal detector for wanding down your friends and neighbors. Don’t look for this in the next E61, however, because it sounds too creepy to actually end up in a product.
Mobile phone doubles as a metal detector [AFP via MobileWhack]