The Keylock 6600. This must rate as the most belligerent door lock in the world. Not just fingerprint recognition, but also a PIN code, a wireless dongle/tag, plus an actual…gasp…key. What’s not clear is whether you need to run through all these at once, or if just one will get you in. But cheer up, the false identification rate is less than 1%, which is great news if you’re stuck outside your hotel room at 3am in the morning, isn’t it?