New rumor says that the iPhone 5S will have fingerprint sensor and NFC from Chipbond.
That Apple will eventually introduce a fingerprint sensor in one of it's products is in the air since Apple got some assets from AuthenTec. A new report on China Times, via Japanese Macotakara says that Taiwanese Chipbond will supply the components for the iPhone 5S fingerprint sensor and NFC capabilities.
Easy to use secure access to the iPhone is a big plus. I am not using an access code because it is a pain in the neck.