Britain's Carphone Warehouse reports that early orders for the Galaxy S4 smartphone -- due to arrive on April 26 -- are 446% higher than the Galaxy S III, itself a huge-selling model. Research firm IHS iSuppli estimates that the new Galaxy will pad Samsung's global cellphone market lead by 6 percentage points, to 11 points. Meanwhile, Samsung said it would "at the earliest possibility" fix a lock-screen-related security hole on Android phones that could enable anyone to bypass security measures to access applications.

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