TBH I see a ipad device with a real OS being useful, it's more portable than a laptop and has a decent sized display it would be handy for people who need a computer round the office but who travel alot round the office space i.e. floor to floor. But with the iphoneOS it wont be much good at that implementation.
I agree. Apple had a great opportunity to provide a proper tablet device with a proper OS but instead of producing a tablet they came up with the iPad.
If it had a proper OS on it (i.e. Snow Leopard 'tablet edition') then I might have been interested, but as it stands I can't see any benefit I would get from owning one.