On December 1, 2011, the US Patent & Trademark Office published a patent application from Apple that reveals an all new way of sharing data quickly and securely between two or more devices in consumer, retail and/or enterprise applications. Apple's new system will be used on hardware sporting next generation cameras capable of reading invisible inks and optical coatings – which will hold a special key code. On the iPad, the secret security code for sharing data could be hidden in its face side bezel where no one could even see it. The next generation digital handshake is envisioned to work in future retail stores and pharmacies and work with social networking sites like Twitter, Loopt, or 4square. And to top it all off, the new system will allow users to quickly log in to other devices using their iPhone – which sounds very cool indeed.