People need to stop generalizing. I have a MackbookPro. Sometimes I need to edit some video, use Photoshop, or do something else that MUST be done on a nice powerful machine. And if I'm on the laptop and have some browsing to do or music to listen to, I'll do it there. But, only if I was already using the laptop for the serious resource intensive stuff. When I'm sitting on the sofa and I want to browse the net, I just unlock my iPhone and go from there. It's not perfect, being on such a small screen, but I find the touchscreen experience very enjoyable and I can use the iPhone anywhere I want. Yes laptops are portable compared to desktop computers, but you still want a surface for the thing. If I'm not going to be doing something really serious, I always go for the iPhone. I listen to my music, browse the net, use social networking apps etc. If I'm on the train I always use my iPhone for this kind of stuff even when I have the MacbookPro in my bag. Within 5 seconds I have the iPhone doing whatever it's supposed to be doing, and I touch my way around. Having 3G etc also means that the iPhone can do things that my laptop can't.
I can't stress this enough... The only reason I use the MacbookPro sometimes is because I have some web design to do or something like that. But 95% of my computing time comes down to researching on the net and enjoying music, tv shows, podcasts etc. I've got apps on my iPhone that allow me to do nearly everything I need to. And the touchscreen opens up so many options for apps that just cannot happen on the laptops. The ONLY thing that stops the iPhone from being the perfect little device in my life is that it isn't very big. The browsing experience is great due to the touchscreen, but I'd like to do a little less scrolling and pinching. And then we have the iPad. It will do 95% of what I need a computer to do, just like the iPhone, but it will be nicer to use (I assume and hope) due to the increased screen size.
Would I completely replace my laptop with the iPad? I don't think so. The 5% of the time I need to do the other things is still important. But is the iPad just something with cool factor that will wear off after a few months? Well, my iPhone hasn't been like that. I use it all the time, all day. It's the hub of my entire life. I organise through it, research through it, enjoy entertainment media through it. Most of the computing I do now gets done on my phone, which I'm VERY suprised to admit. I never thought I'd ever say that, but that's the impact the iPhone has had. I've been using it for 95% of my computing for a couple of years. The iPad is going to be able to do all the same computing stuff, but now the apps have more screen real estate and the browsing experience will be improved. So, if the iPhone wasn't just a cool thing that wore off, why would the iPad be? A big iPod Touch is PERFECT for me.
Of course, it's not perfect for you. I doubt it would be completely useless to anyone, but some people will get better use out of a desktop machine or a laptop. Some may even get better use from a competitor tablet. I'm not suggesting that you should change your mind and like this thing or think you should get it. It's not for you, that's fine. But just because you see nothing to it than the cool factor doesn't mean that there is nothing to it but the cool factor. If it's not a great product for you and something that will get boring after a few months, then that says more about you than the product. You can't assume everyone thinks like you do. The iPhone is still one of the best examples of technology I have ever purchased and it is near perfect for me, but just needs a big screen. It's hasn't got boring after two months. I don't see how making it better, and allowing me to do even more with it is going to suddenly make my fave device boring after two months.
So speak for yourself, not all of us.