Some good comments yesterday in Slate's The iPhone Wannabes by Paul Boutin.

Paul writes, "When Jobs touts the iPhone as three devices in one, he's selling it short: It's a computer, not some limited, specialized gizmo. That means that rather than a fixed set of applications—music, video, Web browsing, chat—it can, in theory, run any program that works on a Mac. The iPhone's killer feature, then, is probably something that doesn't even exist yet. It has the potential to spawn a mobile application as mind-blowing as the Web browser..."

Paul continues, "Once the third-party application restrictions start to loosen, the iPhone won't be just a phone. It'll be a platform."

Further, Paul adds that its "interface looks and works more like the computer you use all day, blurring the distinction between the two. There's nothing else like it in the pipeline."

Of course, we think it will be a great device to watch our movies on the road, too, with its bigger and brighter, higher-resolution screen. Better than the competition's. But that's only one thing it excels at -- a device that can do so many things well. It will be exciting to see how the iPhone changes the future of how we use handheld devices.