After selling 1 million iPhone 3G models in the opening weekend — and taking in enough receipts to eclipse the theater box office takes of “Hancock,” “WALL-E,” and “Indiana Jones and the Kingdom of the Crystal Skull” — Apple must be doing something right, and that something starts with the overall design. Even after a year, the basic design of Apple’s iPhone holds up — it’s as hot and desirable as ever. The iPhone 3G is a tiny bit larger but feels noticeably lighter in your hand, and while some have bemoaned the plastic back casing, it still feels solid.
