Jason Kottke on the over (under?) reaction to the iPhone 4S:

This is where Apple is at with the iPhone now, a conceptually solved problem: people know what they are, what they’re used for, and Apple’s gonna knuckle down and crank out ever better/faster/smarter versions of them in the future.

Or — to use an analogy Kottke uses — why would you reinvent the wheel when you just invented the damned thing?