FRUIT THEMED Apple has applied for a patent on a digital handshake involving invisible ink.
The technology will involve using the integrated cameras on two devices to pair them together for a range of functions. This includes normal things like sharing files but also the ability to log on to one device using another or share information in a game, for example.
Patently Apple said, "Apple's invention is about systems, methods and computer-readable media for establishing a communications path between two devices using a digital handshake."

The image mentions 'next generation' cameras so it's possible that this technology will only work with future devices like the Iphone 5. Meanwhile rivals such as Google are using near field communications (NFC) for this type of feature.
Shiny fruit themed gadgets will be able to link with each other using invisible codes placed, possibly in various positions, around the device. And the system doesn't appear to be limited to only Apple products.
Using this combination of cameras and codes, a pair of products will be able to recognise each other from almost any angle including back to back, face to face and back to face.
Moving beyond just pairing two devices, the system could be used for things like retail situations. For example, the digital handshake could be used to get prescription medicine or authorise funds. µ
Late to the game Apple, FAIL!
http://bit.ly/dI3hcF
I'm with 'Morely the IT Guy', this is of course going to be used by both apple and others to invade your privacy even more (and you thought it had reached saturation, ha).
Nice of them to inform us where the crap is hidden though, and combined with the recent wikileaks releases I guess the message is that you really should start putting a flap over your cameralens, if you insist on carrying a tracki.. cellphone I mean.
Doesn't Apple realize that Blackberry has been using the camera to sync devices for a while... or does removing a barcode on one of the devices constitute something that deserves a patent. I really hope that someday patent authorities recognize the difference between innovation and adaptation.
Bluetooth was created by telecoms vendor Ericsson in 1994. If anyone should have the right to patent digital handshakes as a means to device enumeration it should be Ericsson not Apple.
In the UK, the Surveillance Society capitol of the world, this technology will be used to identify people don't happen to be facing the police camera.
Yet another reason for intelligent people to avoid using Apple products.