[datphp]

> They're comparing it because people are starting to use mobile devices as replacements for PCs

Sure, if you spent all your time on Twitter and Facebook and you like 4" keyboards it's great.

The only interesting comparison here would be between tablet and notebook sales, because they are the only 2 markets that somewhat overlap.

How many people do you know who own an iPhone and don't have a computer as well? Saying that people buy new computers less often because they spend some of that money on smartphones could make sense, but saying smartphones are taking over sounds kinda silly.