PUBLIC MARKS from alamat with tag iPhone4

Engineered Glass All the breakthrough technology in iPhone 4 is situated between two glossy panels of aluminosilicate glass — the same type of glass used in the windshields of helicopters and high-speed trains. Chemically strengthened to be 20 times stiffer and 30 times harder than plastic, the glass is ultradurable and more scratch resistant than ever. It’s also recyclable.

Jobs has just completed outlining all of the iPhone 4’s revolutionary new features. Now to reveal what it’ll cost your wallet.