For years we’ve been used to going to each application in Mac OS X to manage the account settings for that application. However in iOS you can do it all from the Mail, Contacts, Calendar Settings. Mac OS X 10.7 Mountain Lion adopts this one shop stop for managing the settings for multiple accounts in one spot. Head over to your System Preferences and click on Mail, Contacts & Calendars. From there you can setup or manage each one of your mail accounts as well as your Facebook and Twitter settings too. This beats having to go set each app up individually. It’s also the easiest place to enter a new password if you’ve changed your password on one of the respective services.