Mind reading would be even better. Until then, writing words with a keyword is in many cases still the best way to provide input, without feeling awkward or without bothering others.
And speech isn't weird in the same way that touch-screens felt weird for some of us at first. Because touching the screen of your gadget does not annoy other people.
Also, did anybody notice how awful speech recognition is for non-Americans? And they just got in the habit of internationalizing things properly, now we're going back to square one, except for the fact that learning to pronounce things with an American accent is much harder than writing words in English, so devices will annoy the heck out of us non-Americans, even if we know English.
