Will Graphene replace Mylar?

The 2010 Nobel Prize for physics has been won for creating a substance called Graphene which is thinner than an atom and a good conductor of electricity. Wouldn't it be ideal for making the ultimate electrostatic speaker or Magnepans? Graphene probably costs a bomb now, but in a few years its cost will come down. Martin Logan please note. They already have I am sure. Adios Mylar?