Don't Think So
Will a big box CPU be sitting on most desks? Probably not. Will millions of people be using full sized keyboards, separate mice and big (probably very big or multiple) screens, yes. When it gets down to content creation per dollar spent on IT, I see some workers needing hard drives, memory and cpus at their fingertips.
As to the phone, you were kidding, right? How long does your battery last? Is that longer or shorter than your last phone? Do you think you next phone or the one after that is going to have the ten hour talk time an office phone does? I know a lot of people who "work from their cell phone" now. I can't see a non road warrior working from an ear piece 8 hours a day.
