PVPower: The company develops software for solar panel installers to run their businesses, such as designing solar-panel systems and managing their inventory of equipment.

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It's almost stock Android 2.2, by the looks of it, but eFun opted to take the familiar Android soft keys into software, leaving the only capacitive touch for the panel.

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Users can intuitively operate the calculator using the stylus on the touch-panel LCD, and input data using the software keyboard.

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The device, first introduced this past February at Mobile World Congress, stands apart from its capacitive rivals thanks primarily to the addition of a Wacom-like digitizer panel optimized for the company's handwriting recognition software and a slew of stylus-specific, pre-loaded apps, like Adobe's Photoshop Touch and Samsung's own S Note.

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You can organize a panel discussion explaining to potential customers how to use your latest software, says Sherman, and then archive it and upload it to YouTube seamlessly.

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