Flexibility isn't folding, you can't fold these displays that's one of the main issues with them they'll crease and then break.
>Imagine a screen that folds around your arm like a cuff - perfect for leisure activities like cycling or diving, or work that requires both hands (an alternative to google glass style displays).
A screen also fits in a pocket, there is no reason to put it on a cuff I like that Nokia demo like the next guy but come on... why would you replace your 4-6" display with a much smaller one? not to mention that a smart watch/wristband would work just as well. And if you want to curve a display around something that would fit your wrist you don't need a "flexible" display you can mold traditional TFT's also.
P.S. If I'm doing something with both hands the last thing i need is a display on my wrist distracting me ;)
>If you can make something durable and flexible, there are a lot of new things you can do that you currently can't.
Not really sure you can do quite a few neat things in a different way but hardly new things.