Few trend-spotters would disagree with the following prediction from ARM, but it's worth laying it out anyway: Of the 300 million mobile devices sold in 2010, the majority cost over $400. Within the next two years, however, these "crazy money" products (as a spokesperson described them) may represent just 25 percent of the total mobile market -- still huge in absolute terms, since almost two billion phones and tablets are forecast to be sold in 2015, but a distinct minority relative to entry-level and mid-range options.
In an effort to convert these expectations into an even taller
