The image right below shows a redesigned home key allegedly from the iPhone 5S. The new button is described to feel different to touch. The home key is said to have a brushed material feel and be a bit elevated, softer to touch. All of this could mean there indeed is a fingerprint reader integrated in it.
The image right below is too blurry to pass some form of judgment on it, but it’s worth noticing that with so much smoke there should be fire. In either case, Apple is expected to unveil the iPhone 5S on September 10th, so we’ll learn all about in just a week. Stay tuned.