One of the more controversial components of the iPhone 4 is its non-Gorilla glass backing.  Glass is a great material for displays obviously because it is transparent, relatively strong and scratch-resistant.  However, it is more questionable for the back of a device because it breaks spectacularly where traditional materials are stronger and lighter.

But it does look awesome on the back of the iPhone 4.

So the question of the day: Should Apple’s next iPhone continue to use a glass backing or should they move to a different material like plastic, aluminum or liquid metal?