Contrast that with iOS. I only have a handful of non-built-in apps, but they all work perfectly on my iPhone 4, none look worse, and all but the graphics-intensive games look better. I haven't seen any reports yet of software that doesn't scale properly on the iPhone 4.

Apple's tight control of the iOS software marketplace may be a key factor in this success. They may have privately checked a large amount of the software submitted to the app store, and rejected apps which failed to scale properly.

Going full circle, though, the iPhone 4 has 2.3 times as many pixels as the Apple Lisa, has a full color screen, you can fit it in a pocket, and you don't have to hunt for a wall outlet when you want to use it.