+1
DVI port for e-ink reader so it can behave as monitor would be really great.
And just imagine that in the same time you can connect it to the same machine via USB for on-screen keyboard and use stylus instead of mouse. It would be great device for e.g. IT personnel that needs to jump-start servers.
Also possibility of e-ink reader to be recognized as a printer would be great.
More info about new e-ink technologies from IFA 2013.
D.