[I really want my browser back button back, argh!]

I wonder why people haven't done this before. The e-paper displays have always been the 'epaper' layered over circuit that creates tightly controlled electric fields. I'm guessing its something about the registration between the 'display' and the 'writer' that has fairly high tolerances. If they could license the plastic logic process to make plastic versions of the e-paper then you could have "paper" that you "print" but can recycle just by sticking it back in the input paper tray. No money selling ink though :-)