Apple has announced that it's new OS X 10.8 'Mountain Lion' will be released this month with strongly backed rumours that it will be on the 25th and available to upgrade to for $19.99 from the Mac App Store.

It's not a major upgrade from the previous 10.7 'Lion' release but it looks like Apple are moving a step forward to unifying it's OS's with iOS integration including reminders, notifications and Twitter integration as well as Messages, Notes (separate, not within Mail) and Game Center. Reminders and notes all sync to the iCloud which apple says that Mountain Lion is the first OS X with it in mind. This means Mountain Lion will use your Apple ID to automatically set up Contacts, Mail, Calendar, Messages, FaceTime and Find My Mac. And iCloud will also sync Documents across your devices - any changes are pushed across all your Apple kit so documents are always up to date.

Apple has also introduced a new security feature in Mountain Lion called Gatekeeper that allows for personalised security settings, working as a kind of safety net for less confident users by offering a setting that allows the Mac to accept only software downloaded from the Mac App Store. Also there is Facebook and Twitter integration meaning you can sign on once and tweet directly from all your apps including Safari, Quick Look, Photo Booth, Preview and third party apps.