Yahoo! today announced the preview availability of Yahoo! oneConnect, the revolutionary new social address book that brings together a user’s circle of friends, their lives, and all the ways they communicate into one seamless, easy-to-use application. Yahoo! oneConnect is now available in the Apple iPhone App Store and is also expected to support additional devices in the coming months. Key features include: Full-featured address book that integrates contacts from the user’s Yahoo! Address Book, iPhone and social networks. Pulse: A convenient way to see what’s happening on your social networks. The initial version of Yahoo! oneConnect supports networks including Bebo, Dopplr, Facebook®, Flickr®, Friendster®, Last.fm®, MySpace®, Twitter™ and YouTube™. Integrated mobile messaging with your friends via SMS and Yahoo! Messenger, including support for avatars, photos, and emoticons. Favorites: A simple way to keep your most important people close at hand to check on status, call or send a q