This story relies on input from three analyst firms — In-Stat, Canalys and Forrester — to make the point that while smartphones are making progress, they haven't reached an inflection point at which they will replace laptops and PDAs…
In many instances, smartphones add redundancy to the older devices. Possible factors holding them back: dissatisfaction with small keyboards and small screens, lack of applications, cumbersome navigation and short battery life…
These issues will be addressed in time. What may be a larger problem for smartphone manufacturers is users' reluctance to concentrate all functionality in a single device — due to fears of being stranded if the smartphone breaks or disappears...
It's not that smartphones aren't progressing. Shipments increased 73 percent worldwide between the second quarters of 2006 and the year-ago quarter, while PDAs continued to slip…

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