. Apple Inc. . http://www.apple.com/macosx/mountain-lion/features.html#messages . Retrieved 2012-02-22. ^ Caldwell, Serenity; Frakes, Dan (16 February 2012). "Mountain Lion: Hands on with Contacts and Calendar" . Macworld . http://www.macworld.com/article/165436/2012/02/mountain_lion_hands_on_with_contacts_and_calendar.html . Retrieved 2012-02-17. ^ "OS X Mountain Lion – Inspired by iPad. Made for the Mac." . Apple.com . Apple Inc. . http://www.apple.com/macosx/mountain-lion/features.html#notes