Apple Speeds Mac ‘Mountain Lion’ to Take On Windows 8

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Apple Inc. will release an upgrade to its Mac operating system later this year, making its laptops and desktops more like iPhones and iPads just as Microsoft Corp. prepares a new version of its competing Windows software.

A preliminary version of the new software, dubbed “Mountain Lion,” will be made available to developers today, Phil Schiller, Apple’s senior vice president of product marketing, said in an interview. He didn’t disclose pricing for the upgrade, which will be available only via download from Apple’s online Mac App Store. Mountain Lion will be widely released in late summer, he said.