Did I say "soon"?
I said, "eventually". Personally, I expect it within 15 years--maybe 10. Desktops will be far different from what we're looking at today... Probably wedge-shaped with a touch display built-in and either a slide-out keyboard or the USB-equivalent connector for an external keyboard--all designed to be in easy reach for text or touch entry. The odds are that speech to text will be more reliable and efficient so that even keyboards will be the exception rather than the rule, though the users will likely be sub-vocalizing through throat mics.