<A target="_blank" href="http://www.pcworld.com/article/218578/why_the_tablet_is_and_isnt_the_future_of_computing.html?tk=rss_news">PCs have been around, maybe, 30 years. Portables, not so long.</A> But, as people change their expectations of computing, things are changing. Whether the desktop system ever goes away, tablets are probably here to stay.