While it's dangerous to make predictions about the future of technology, I don't foresee any mobile product coming out that isn't "flat." How is anyone supposed to fit that into a pocket? Even in a purse or messenger bag it would be unwieldy.
I'm going to purchase this and make every intern have one, using it to run and read out information to me, so I can finally start my quest to become a technomongolian warlord