Transparent screens. What kind of utter stupidity is that? If I'm doing anything on my phone or tablet, the last thing I want is other people to see it. And wouldn't transparent screens be really annoying and distracting to work with anyway?
Touch-screen/holographic keyboards. This is one those things that just looks cool and futuristic, but actually would be much less efficient. Mechanical keyboards would be way faster and efficient, if you know how to type systematically.
Why is half the times everything is so blue? What is up with that?