The thumb could be the key to a whole new world of features and convenience if Apple does indeed include the rumored fingerprint reader in its next iPhone.
http://anewdomain.net/2013/08/28/future-apple-iphone-fingerprint-tech-work/

Very glad that BYTE is back, as it was the seminal prosumer computer publication back in my formative years. Extra pleased to be a Senior Contributor there, covering a range of topics from Apple through enterprise computing. My first post is live!
http://www.informationweek.com/byte/commentary/personal-tech/desktop-os/231002872