It's going to be a small patch on your skull that lets you look at a link and think : click / go. Your eyes and focus will make your hands almost entirely pointless for using a computer.
Within 10 to 20 years it'll be possible to wear said small patch, look at a url bar, think google.com, then think: go or enter, and it'll all just work. I think it'll be available in 10, but larger consumer adoption within 20.
That same patch will enable true interfacing with your physical environment. Walk into your house and think kitchen lights on (plus a safe confirmation word or phrase to make sure you mean it), and they'll come on based on the associated phrase.
By the time companies like Microsoft get around to trying to perfect a ridiculous hand > 3D interface, this concept will already have destroyed it.
Minority Report interfaces also will never become mass consumer adopted because of this.