Mac OS X 10.8 Mountain Lion has been available in Beta for developers, but this latest version is all-but complete with very few changes likely before the full version is outed to consumers.
Apple has incorporated a host of functionality from its popular iOS mobile software including AirPlay Mirroring which allows Apple TV owners to wirelessly send content to their HD TVs.
More iOS-alike features
There's also the Messages app, which brings instant free instant messages between OS X and iOS device users, along with the Notes and Reminders apps.
Apple is also bringing system-wide Facebook and Twitter integration, a new Voice Dictation feature, Game Center, offline reading in Safari and improved security settings.
The upgrade will be just $20 for US users from the Mac App Store and we'd expect that to translate into around £15-£20 when Apple outs the OS, probably within the next couple of weeks.
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A technology journalist, writer and videographer of many magazines and websites including T3, Gadget Magazine and TechRadar.com. He specializes in applications for smartphones, tablets and handheld devices, with bylines also at The Guardian, WIRED, Trusted Reviews and Wareable. Chris is also the podcast host for The Liverpool Way. As well as tech and football, Chris is a pop-punk fan and enjoys the art of wrasslin'.