OSX Lion will be available in the Mac App Store for $29.99. (BECK DIEFENBACH/REUTERS)

Apple confirmed that it will launch OS X Lion, the next version of its operating system for computers, tomorrow during its earnings call Tuesday.

The operating system will be available for download though the Mac App Store and the company has slashed its price to $29.99.

The company beat analyst expectations again, reporting $28.57 billion in revenue and another record-breaking quarter in sales, selling 9.25 million iPads and 20.34 million iPhones.

As always, execs were tight-lipped about unannounced products, dropping no hints about the next iPhone or the refresh of the MacBook Air.

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