is a dual screen setup where the E-Ink(or whatever other technology comes along) is on top with the LCD tech below it. Everything on the page that doesn't move would be displayed with the E-Ink tech and the moving stuff would be displayed by the much more power hogging LCD.

Of course, the trick would be to make the E-Ink portion transparent when it's not in use. Additionally, you could use the LCD as a sort of backlight to the page in low light conditions.