Only if an idea is not worth the dream of it and only then it is really worthless
I own a MacBook Pro and I own an iPhone.
I expect Apple desires that I buy this tablet.
Therefore, I expect Apple is not going to offer me an "iPhone Plus" or a "MacBook Minus" that either mimics existing iPhone functionality in a larger form factor or just offers less functionality than what I currently have in a MacBook (Pro).
As a few folks have commented in referring to the original iPod and original iPhone, I expect this tablet will do some of the same things other products offered outside of Apple do, just better. I also expect it will do some things no other product does. And together, that will create a positive value proposition in my mind that makes me at least give serious consideration to buying it.
OK,
lets play with that theory:
if a tablet had wifi / bluetooth you could use it as an additional display for the hardware you already got (yes, second screen for your MacBook or a larger one for your Ipod
Of course it can be controlled via Apple Remote and can by itself act as a remote.
Even a small OS like Iphone OS does allow for limited functionality it might break the barrier with remote desktop apps, wich allow you to work as a remote user on any machine at your network at home.
I think Apple might go for a product line as with the Ipod's and the MacBooks, which would mean you could get the basic version with say 16GB and 7" Display / WiFi/ Bluetooth/ Camera/ Compass/ Accelerometer/ GPS/ Gyroscope for about $499.
Remember that Apple actually destroyed the market of MP3 players for their competitors by aggressive pricing.
So following the idea of a more advanced device, you might get a 32" GB / 9" display for about $699 and the high end with 64 GB / 11" display for may $899.
And in fact it cant be more expensive than that because of the MacBook, that s a bit bigger, but so it is also in terms of performance anyway. ;-)
Come to think of the wireless keyboard and the magic mouse, you have additional devices present at any Mac owners home that can be used as input devices.
The tablet as i look at it might be a great stand alone product but also a great addition or extension to already present "infrastructure".
All tablets might have GPRS/EDGE units built in but they wont contain a phone as you don't need that part when using VOIP on a GRPS network connection, because in that case all you need and want to get is a network connect somehow. Come on, it really sucks if you try to use a device in the size of a bathroom floor tile to make a call - that even looks stupid.
However, even for GPRS/EDGE you need a telecom provider and it should be up to you if you think that you need to read the news on the road in real time instead of downloading at home and reading offline. (Read, get a contract or not. I believe apple is gonna make its money still by shares of others sales, but they dont care whether its the telco guys or the publishers of content or apps.)
But there is one thing that makes me stumble. There is something with the tablet that distinguishes it from any other apple product. Call it intuition or loss of reality here, but apple is gonna rock the world again and on 27th Jan a lot of people in the industries will then say "Why did we not have that idea - it was so obvious - so close - so WOW. Ok, we just didn't have it. Well, so we do as we always do - lets copy their, erm implement our solution."
Happy waiting all
regards