Graphene have more possible usage - I've found some resources over the web about it - check it out: http://www.nano-man.co.uk/Nano/Electronics/Just_an_atom_thick_and_200_times_stronger_than_steel_and_a_near-perfect_conductor.html and here: http://www.nano-man.co.uk/Nano/Materials/Jagged_graphene_edges_can_slice_into_cell_membranes.html - it seems that in future graphene might be as commonly used as the steel or silicon is