Salutation is a WordPress and BuddyPress theme. If you’re not familiar with BuddyPress, it’s a social network plugin for WordPress allowing your website to become a fully functional community portal. BuddyPress lets your users interract through groups, forums, friends, status updates, private messaging and a lot more.

Demo: http://themeforest.net/item/salutation-responsive-wordpress-buddypress-theme/548199