That's my favorite part about Apple: When they introduce a product that makes other products of theirs look obsolete. I used to love my laptop's multitouch until I tried a Magic Mouse; now my scrolling all feel stodgy.<p>I agree that the iPod and iPhone were much easier sells. But I suspect that the iPad will be seen as a superior product. I mean, the one thing Apple does <i>not</i> corner the market in is standard computing. OS X machines lose out to the Windows market. If anything, this is an entry into that market, same as netbooks were; if you look at this as a cheap, simplistic laptop that just happens not to be a clamshell, then it makes more sense. People looking for a good deal can buy this, and it handles basic computer-y things for them, and it turns out that they don't need all the cruft modern computers bring with them.<p>But actually in this case I've got some perspective, because last month my mother began asking me about the tablet. She owns an iPhone but no laptop; she likes my laptop but doesn't want to drop that much money for something she won't use much. Her questions were things like: Can I watch a movie on one? Can I check my email? Can I read books? For somebody who needs to do basic computer things like email and Internet, but who doesn't need anything specialized, there's nothing you need that the iPad can't do. (I'm curious as to how many people in the US own laptops. I've never thought about it before.)<p>As for the G4 cube comparison (though that made me think for a second!), I think there's one huge difference: The OS. This is easily the best operating system ever made in terms of usability. There's almost no abstraction. No mouse, no doubleclicking, no app folder, no dock, no task bar... you push a button and it launches something, and that thing is usually designed so that it makes perfect sense without instructions.<p>I didn't get why that was a big deal until I saw the streaming keynote and actually looked at the applications. I'd bet that Youtube on an iPad is simpler and funner than Youtube on a Macbook, because there're fewer steps to going about doing anything. The simplicity of the OS allows for far more elegant app design, to the point where I think people will notice and be sold on that design alone.