eInk is very slow refresh, about a second...not fun for a laptop. Pixel Qi displays work better: have TFT-speed refresh with sun-light readability. Indoors its a color display. Outdoors you can turn off the backlight to conserve power.
If your computer/laptop has VGA/HDMI or composite out you can use our Pixel Qi+Controller kit http://www.adafruit.com/products/1303 for modern laptops with a 40 pin LVDS cable you can just do a swap out as long as the screen's the same dimensions.
If your computer/laptop has VGA/HDMI or composite out you can use our Pixel Qi+Controller kit http://www.adafruit.com/products/1303 for modern laptops with a 40 pin LVDS cable you can just do a swap out as long as the screen's the same dimensions.