I will draw your attention to Apple's own slides, where they place the iPad between the iPhone (and smartphones in general) and a MacBook (and personal computers in general). They are undoubtedly interested in selling all three for some time to come.<p>Will it supplant personal computers for some people? Sure. It just means that personal computers will have to shift to doing what they do best even better. It might drain a lot of life from the netbook market, but that's about it.