$GTATQ ~Though Apple (NASDAQ:AAPL) stuck with Gorilla Glass for the iPhone 6 and would-be Apple sapphire supplier GT Advanced (OTCPK:GTATQ) filed for bankruptcy - it's now trying to sell ~2K sapphire furnaces to pay off creditors, with stockholders getting anything left over - there's still strong industry interest in sapphire as a potential smartphone cover glass solution due to its scratch-resistance and thinness; Apple has said it will "continue evaluating" GT's sapphire progress.