CeBIT may be more of an information and communications technologies showcase rather than a consumer focussed show, but that doesn't mean there aren't any wacky design concepts on show. Pick of the pile is the ASUS Iris gear.
They're calling Iris an "Adaptive Personal Device", and by that they mean it can transform into any number of forms. The concept video demo showed it working as a wristwatch, projector and tablet, with some sort of stretchable projection screen allowing the Iris to take many forms.
All very futuristic, and all very unlikely to ever make it into a real product. In our lifetimes at least.