Sony is not the first to release a water-protected model, but appears the company believe the feature will add to its device's appeal.
BBC: Sony unveils new touchscreen computers at IFA trade show
In an API business model, user privacy is protected because their data is only available to those permitted to access it by the user.
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The traditional Japan Inc model of global expansion is to spend decades ploughing profits generated in a protected home market into loss-making operations abroad while building global market share.
ECONOMIST: Cutting off NTT
Its business model is under challenge from data commissioners in Europe, where personal details are protected by law.
BBC: Facebook's battle with privacy and profit
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