Woot !! Here is my take.
First off, I have a MBP hooked up to an ACD 20" and I have an iPod Touch (I got for free from a friend).
I purchased the MBP for its portability but found I didn't really want to move it off my desk much and find it a bit cumbersome to take around the house or when i'm hanging out with my family.
The iPod Touch is easier to take around but the small screen size was starting to get to me. I didn't like doing anything on it, but it is nice to just plop into my pocket and have it handy for when I need to look something up or email.
Now, I was looking for something that was more powerful than the Touch but easier to surf , email, watch movies etc wherever I wanted in my house or on trips. I don't need this thing on the go, just need it to be easier to handle in my house than moving my MBP.
The iPad fits my purpose here, my other option was the Air. Considering the price difference and since I already have a MBP, the iPad might be exactly what i'm looking for. I don't need the iPad, I would just like to have it.
I'll probably just get the 16gb version and just move content on and off (in conjunction with my MBP 320gb HD). I don't see spending $100 for 16gb more of storage.
PROS:
Great portability for surfing the web, watching movies, music, pictures, reading books.
IPS screen (nice)
Decent size compared with my Touch.
Easier to move around than my MBP
Looks pretty fast.
$500 isnt too bad of a price
Apps being developed for the iPad should be promising
Wifi (all I need, i'm only using it in my house or at work or wifi spots, i'm not paying for any more service, plus i'm not gonna be walking the streets with this thing)
Gaming - should be better than on the touch/phone. I personally don't play too many games anymore.
Nice battery (10 hours)
CONS:
Won't replace my MBP (lucky I have one already) Its a complement to your main computer.
Where is the flash ? Won't that become an issue with truly taking advantage of all content on the web?
No camera (probably in next revision)
Minimal storage unless you go for the $700 version (not happening, i'll just have to swap content in and out)
Sort of like an iPod Touch (however, I didn't pay for my touch so I have the money saved for this device)
You depend on the Apps. Hopefully they will be better for the iPad (catering more to its screen size and power)
Some might need to purchase another 3G service
Cost could be an issue to some for the higher storage.
No multitasking (WTF !)
Overall, I can handle $500 for what I need this device to do. I think it will nice to have it around the house and use it on trips or at work during break. I have a MBP so I don't need another computer or to have it replaced, just something to complement the things I do.
I'll be honest, I was not too impressed. I still see it as a larger iPod Touch. I know its better etc, but if you break it down, its a touch with some more ability and potential.
If your ok with the pros and cons, then I say purchase it. If you were looking for something greater, consider just getting a Macbook or MBP. Its as simple as that.
Cheers