It's becoming startlingly apparent that in the future buttons will be obsolete. Their kind are being systematically eradicated by high-brow designers worldwide, most recent being Kazuo Kawasaki at Minebea, who has created Cool Leaf. It's basically a mirrored surface with backlit keys and a capacitive
coating, creating a beautiful appearance that looks decidedly not-fun to use, particularly that keyboard (stylishly dubbed "Φ-QWERTY"). But, it is practical in some respects, thanks to the whole thing being waterproof and easily cleaned. So these might indeed be the keyboards of the future -- for doctors and nurses, anyway.
Cool Leaf devices