I think this is a misconception in the way it is applied to this scenario. Although bamboo is 3 times "stronger" than maple... so is spider web silk. The strength you are referring to is probably due to the tensile strength and flexibility of bamboo. These strengths are pretty much useless in guitar making. I don't doubt that bamboo can be made into a stable enough board to make acoustic guitars out of, but in this case, the strength won't be in the bamboo wood properties alone... it'll be in the collective laminate properties. As someone else mentioned... basically, it's ply wood. And even if its a super plywood, I think a solid top is superior in my opinion.Bamboo is 3 times stronger than maple.