You can still take pictures with it if you download a 3rd party camera app, though it's a bit hard to press the button properly without looking at the screen
Someone should develop a periscope-styled device to clip to the top of the Nexus that would allow the user to look at what his camera is aimed at. It would not have to be large or cumbersome.
I'll get in touch with Nikon and Pentax and work on it right away.
My tablet is also designed in such a way. Ideal ig you want to photograph yourself, but after that, I have yet to find a use. Don't all shout and say SKYPE!, cause we all know it is much more straight forward to use a laptop for that.