I believe what started the new talk about this was the fact that there was a Nobel prize given this week for it's discovery (in 2003 IIRC). To say that it has no use because it is economically un-feasible is to ignore every technological innovation since the beginning of time.

From the brief description I heard about it there seems to be a lot of uses that could be easily developed for it given that the technology to produce it progresses like all other technologies similar to this have.

Also - worth noting - while I am not in the field, and do not possess specific knowledge about the different advances going on at this time I did get the impression that this is an entirely different application than nano-tubes or nano-structures. This is a sheet that is supposedly 1 atom thick. The electrical conductivity and it's transparency would naturally lend it to use in electrical components more so that carbon structural units at this point.

Bicycles if they were to be made of this would most likely have to continue to be made up of layers of sheets of this - not unlike our current fiber weaving processes. Instead of sheets of woven fibers it would be sheets of atoms layering it in the mold.

My $0.02