NY Times has a gushing article about the wonders of grapheme:

• graphene was discovered to be 200 times stronger than steel
• so thin that a single ounce of it could cover 28 football fields
• transparent
• conductive
• flexible
• light: A cubic inch of the material could balance on one blade of grass
• graphene could stretch by 20 percent while still remaining able to conduct electricity. Rubber stretches by 20%
• graphene is inexpensive