Wrong. The Ipad isn't built for Apple's customers, it's built for Apple.
When you say it "doesn't carry the drawbacks of a computer", you're simply being dishonest: it would cost nothing in user experience to allow multitasking or free installation of software. A full OS X with the iPhone GUI would be fantastic, and relatively easily accomplishable. It would come with no extra draw-backs for the user whatsoever. And you know this perfectly well.
But this would cost Apple a lot, in that a user with choice wouldn't be tied to iTunes. The question is: why are you being dishonest? Apple probably doesn't pay you a cent for your work as a freelance advertising agent. And why is this bullshit so prevalent among Apple fanboys? There's a reason why you guys are called a cult: you are one.
Have you actually used a desktop OS with a touchscreen? I have and they are all gimmicky. Go grab a netbook with a 10" screen. Start sticking your finger all over the screen. Start with the max/min/close buttons and note how your finger more than covered up all three. That's just the start. Almost every UI element is too damn small to be touched or too damn close to something else that you don't want to accidentally press. Microsoft has failed hard over the last decade with tablets because they have engineers like you who only think about the spec sheet and have never actually sat down and tried to use their own product.
Thus spake the master programmer: "After three days without programming, life becomes meaningless." -- Geoffrey James, "The Tao of Programming"