Calfee greated another cool bike made from bamboo (a sustainable product). Check it out on their website at:
http://www.calfeedesign.com/bamboo.htm.
Also check out the Bamboo Bike Project at:
http://www.bamboobike.org/Home.html
where they are building better bikes for the poor in Africas rural areas and stimulating a bicycle building industry to statisfy local needs.