"The substance itself is light years ahead of glass," he said, adding that it�offers "higher performance and lighter weight." Traditional transparent armor is thick layers of bonded glass. The new armor combines the transparent ALONtm piece as a strike plate, a middle section of glass and a polymer backing. Each layer is visibly thinner than the traditional layers. ALONtm is virtually scratch resistant, offers substantial impact resistance, and provides better durability and protection against armor piercing threats, at roughly half the weight and half the thickness of traditional glass transparent armor, said the lieutenant.
Now if Apple would make their iPods out of this stuff no one
would complain about scratches.