On October 20, 2011, the US Patent & Trademark Office published a patent application from Apple that reveals their work on optical transmitting cables, connectors and adapters. I first thought that the patent was simply describing Thunderbolt until I saw the illustrations as you could see above. They have nothing to do with Thunderbolt. These kinds of cables are usually used with HDTV's and other home electronics. While optical cables are interesting and I'm sure that they'll likely work with a future iteration of Apple TV – I wonder what else Apple may have in mind. Interestingly, the patent graphics make it appear as if the product is in its final stages of design. If you have any specific ideas as to where Apple could use such cables, beyond what is presented in the patent application, make sure to send in your comments.