Just how smart are today's smartphones, which aim to replace multiple devices -- mobile phones and PDAs -- with a single gadget that handles phone calls, e-mail, browsing and personal information?
Opinions differ, but the consensus seems to be that the technology is not quite perfected. The descendants of today's devices will undoubtedly be more refined -- as small and tough as today's mobile phones, and nearly as cheap -- and will truly enable rich voice and data computing.
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