Apple iTablet to be a hit if it has:
- Full Mac OS X inside (not the limited OS X found on iPhone or iPod touch). Can Apple deliver? We need thousands for our University. The price is not a problem.
A tablet with desktop OS X is not going to happen, because you can't have a purely touch screen interface with current OS X apps and APIs - it just won't work, no matter what the resolution. There are too many assumptions made about the nature of the pointing device (i.e. not a finger covering the item you're looking at), many controls are too small, no control click, menus would be too fiddly etc etc.
Mobile OS X is the future of the mobile platform, and will be used for their future tablet (suspect a tablet rather than a netbook). It could easily run keynote/powerpoint presentations, with a bit of work, but I doubt very much that would be a priority. You are describing an edge case, and building a product around it (presenting on a portable tablet). They may migrate the iWork apps to it, but not on the first iteration - the first iteration will be a bigger ipod, featuring mail, surfing, maps, photos etc. All the Apple apps adapted slightly to run on a higher res screen (wouldn't take much).
A tablet would make sense for gaming, internet, email, reading. Pretty much all the activities that people use netbooks for. It would *not* make sense for extensive data input, or manipulation (without a paired bluetooth keyboard, and even then, it's not a given), but that's fine, that's what larger computers are for.
Actually, this (first picture) would be awesome:
Next Apple moves will be Books and Games…
I agree that books and games are the next focus, but features like DVD drives are dead in the water (look to the Air for confirmation of this). However the general styling (a bigger ipod) isn't too far off probably. There's no way it will run desktop OS X though - aside from the practical reasons noted above they've poured too many resource into Mobile OS X for it to be a sideshow - note the twin tracks at WWDC, and the revenue from mobile devices which is dramatically increasing.
The natural fit for this device is Mobile OS X - I'd go so far as to say that Steve is now bored with the desktop, and you won't see any more shiny new desktop products - the new focus is laptops and mobile.