And Zoho is already pushing into more sophisticated applications, offering customer-management and project-planning software alongside basics such as word processing, spreadsheet and presentation software.

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It is certainly powerful enough to run office suite applications such as word processing, spreadsheets and presentations, e-mail, instant messaging, Internet access for surfing and blogging, playing a few tunes and watching a DVD in flight (the battery will get you across America, if not an ocean).

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Applications digitized existing real-world processes, such as word-processing, payroll and inventory.

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That will be the most basic model, doing the computing and word processing tasks of today's PCs as well as such functions as accessing the Internet.

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