So, as most of you probably know, Apple purchased a few hundred glass cutters to be used by its suppliers on (presumably) the iPhone 5. Many think this points to a curved screen for the iPhone (like the Nexus S has). What they overlooked is the fact that Apple loves curved backed devices. They also love glass devices, and, frankly, going back to plastic for the iPhone would just feel cheap now. So I was thinking, what if the glass cutters are so they can make curved glass backs? It sounds like something Apple would do if they could, and also lines up with the rumor that they want totally built in SIMs on the new model...on past models, the SIM tray went into the plastic (or metal) of the phone. If the construction was almost entirely glass, a SIM tray wouldn't work well and would be very fragile, so an internal SIM would be the way to go Just a thought, looking at the rumors from another angle What do you guys think?