Over the next five years, we'll see more people using phones and tablets as their main computing device. And I think we can also expect to see current desktop platforms like Mac OS X, Windows and Linux replaced by touch-friendly interfaces like iOS, Android, Metro and so on.

In other words, Apple's iOS is poised to take over mainstream computing.

Mike Elgan writes about technology and tech culture. Contact and learn more about Mike at , or subscribe to his free e-mail newsletter, .

in Computerworld's Mobile OSes Topic Center.