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I wouldn't class iPad as anything similar to a PC. As long as Apple dictate what you can and can't do with it and take a cut of all apps to subsidize the selling price (presumably, I don't know how much it costs them to build it), it's more like a Playstation. I see the Android tablets as being far more similar to a PC: you can do what you want to them; multiple manufacturers; multiple form-factors; etc.