iPhone5 proximity sensor already available?

SW-Box.com claims that the iPhone 5 proximity light sensor flex cable is genuine and the 'real deal'. The part's pricing starts at USD 3.77, with price reduction for volume orders. Claiming that its offices are close to 'Apple's factory', the site tells us that "this flex cable is evidence of solid engineering: dynamic light sensing diodes and high flow terminals allow it to properly pick up proximity for fully featured functionality at a surprisingly low cost. Each cable comes with the necessary adhesive strips so they can be pressed down into the iPhone 5 back plate for easy DIY iPhone 5 fixing". © SW-Box