This is very cool work.

Would be interesting if this or something similar also works with e-ink/epaper displays.

By the way, do you know how much power this setup draws?
Maybe even how the power consumption is split up between the display and the i2c controller?

Personally, I'd love to have something like this just with an e-ink/epaper display (in order to not drain the battery too much).

Edit:
A quick google revealed this:
http://www.youtube.com/watch?v=E05Azzcz5yg
http://www.youtube.com/watch?v=qPaNMrFXsqM
So, it looks like e-ink should be possible too.

Edit2:
Some more links:
http://repaper.org/reference.html
http://www.embeddedartists.com/produ..._27_epaper.php
http://www.watterott.com/de/27-Inch-E-Paper-Display

Edit3:
Another interesting keyword seems to be "chip on glass".
These things are said to be very flat and come with an i2c chip built-in.
http://www.amazon.co.uk/glass-displa.../dp/B006GE8I8U