It seems like the downsides of the "work computer" as he's characterizing it are the fact that it encourages multitasking behavior. On the other hand, with the

It seems like the downsides of the "work computer" as he's characterizing it are the fact that it encourages multitasking behavior. On the other hand, with the iPad/iPhone/iTouch platform multitasking is severely restricted, applications appear full-screen and there's a small (time) penalty in switching from one application to another (it's not as easy as alt/cmd-tab). It is ironically a good limitation for some situations. But, you can achieve the same thing by just doing one thing at a time. (And I think that's a lot better for a lot of work activities too.)