By Se Young Lee SEOUL (Reuters) - Samsung Electronics Co Ltd aims to restore its crumbling lead in the global smartphone industry in part by ramping up high-end devices with curved screens full of advanced technology that's tough for rivals to replicate. Yet as the South Korean giant seeks to make devices like the rigid-curve Galaxy Note Edge stand out from a crowd of flat, big-screen handsets, making money will depend on producing them cost-effectively and coaxing developers to tailor applications for the new format. ...



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