Bamboo is an excellent sustainable material because it grows quickly, is durable and relatively easy to grow.  Because of it’s sustainability, we have seen a flood of different things made out of bamboo like towels, sheets, iPod/iPhone cases, furniture, rugs, etc.  Later this year we will be seeing a new Android phone packed into a bamboo shell.  No this isn’t a case that fits over the phone, it is the phone itself.