Asus is working on a laptop which uses bamboo instead of a plastic enclosure. Stuff.tv writes:
It belongs to Asus, which has designed the Ecobook as the ultimate environmentally friendly laptop – and not just because of its renewable source casing.
Take the recyclable plastics, easily labelled so they can be removed when the time comes to finally sling it in the tech graveyard. And don't go looking for harmful paints, sprays or electroplating on its circuit boards because you won't find them, no sir.
What you will find is a components enclosure made from stiffened cardboard (no really) and easily upgradeable parts so that you can trade bits up rather than throw the whole thing away in consumerist haste.
The Asus EcoBook notebook should become available in 2008.