Another timely snapshot from The Economist
Makers of handsets, which consumers are replacing more slowly, will be hard hit: unit sales are expected to fall by at least 10% this year, having increased by 6% in 2008 to 1.2 billion. But at the same time the industry is going through a transformation that promises to fuel rapid growth in the years to come. To draw a parallel from computing, it is as if the personal computer (PC), its graphical user-interface, high-speed internet access and open-source software had all taken off at the same time.
Or, in a picture: