I've posted before about the future of the iPad - I feel that in another 10-15 years time, we'll all be using 20"+ tablets with multi-touch versions of Photoshop, InDesign etc.
I need to add another aspect to this - Siri, the A.I. that ties it all together.
Although a huge multi-touch tablet has been my dream, a nagging doubt has always been at the back of my mind, do I really want to multi-touch everything, all day, everyday, even for the most mundane tasks?
Probably not. Imagine choosing a particular font from a list of 200, cutting out an image using the pen tool, typing on an onscreen keyboard - all day.
Even with the most efficient, elegant OS, this would be tiring.
Imagine now that Siri could do most of that, just by listening to you. Combine with that a seasoned multi-touch user, and you have a seriously productive workflow.
And it all belongs to Apple.