Sony Corp. plans to unveil an updated PlayStation Portable handheld game device on Jan. 27, followed by a game-playing smartphone in February, according to two people with knowledge of the plans.

With the updated portable player and the Sony Ericsson touch-screen smartphone to be shown at the Mobile World Congress in Barcelona, the Tokyo-based company aims to gain market share in markets dominated by Nintendo Co. and Apple Inc., according to one of the people, whose company makes mobile-phone software and was briefed on the plans.

Nintendo and “the PSP2 will help revitalize the industry and help fend off digital threats from Apple devices that only sell games online,” Wible said in the note.

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