Frankly, we're not sure what need the iPad fills, other than the desire to be cool by owning a device that is in a class all its own.
It's a sandbox device -- the utility of the device will come from software written. The potential is enormous. Maybe it's not what you need or doesn't fill a need at this very second, but to dismiss it out of hand the way lots of people are is amusing.
It's very much like reviewing a video game console based just on whatever game is packed in and claiming that it'll never amount to anything more.