I am the proud owner of a 15-inch MacBook Pro & an iPhone & I think the iPad will fit in perfectly in between both these devices for me. It seems the majority of people on here seem to be wholeheartedly underwhelmed by the iPad but for me it's the perfect device for my needs and here's why.
I'm a med student & spend most of my time in hospital. I can't take my MacBook Pro with me because it is too heavy & cumbersome to carry on the wards, I can't leave it anywhere as there is a distinct lack of secure places to leave it and I can't even use it unless I sit down at a desk anyway.
I can use my iPhone every so often to look things up but it is very often inappropriate to be using a phone in the clinical environment, especially on a device that has a camera. It also has a very small screen that is only useful for web-browsing & some email, it certainly isn't good enough to do anything productive.
The iPad fits the gap here perfectly. I can hold it walking around the wards, using it discreetly, especially with an accessory like
this one. I won't have to leave it anywhere because it is portable enough to hold all the time. I can have many of my reference text books with me as well as my notes that I have written in Pages with the ability to edit them & create new ones. If I find myself with an hour to spare in the day I can browse the web & do emails more pleasantly than on the iPhone as well as read a newspaper or a novel, study with my textbooks, write up notes, watch a film or TV, listen to music, play great games etc etc etc. All this without the need for a power adapter throughout the day (hopefully!!!).
I can appreciate the negatives for many although they don't bother me at all. I've been using my MBP & iPhone for years & have never needed the camera on either, I've certainly never done a webcam chat. I can see the multitasking problem but if it allows me to have better battery life then great, it's not gonna stop me doing anything, it'll just require a couple of extra clicks/touches. I would be surprised if it didn't end up as a feature eventually anyway (although knowing Apple I'm sure it will take a while!). Yeh you get blocks on webpages sometimes on the iPhone where Flash is missing but I couldn't really care less, it's never even remotely bothered me. I'm lucky I guess!
To the OP, I feel sorry for you if you can't relate to this because I am very excited about getting my hands on one as I am going to get a hell of a lot of use out of it (I'm gonna get the 64GB Wifi version btw). Maybe you will change your mind when you play with one in the store, or at the very least see how some people may think it's a great bit of kit?