EQO is a free mobile application that lets you chat for free with all your buddies on MSN, AIM, Yahoo!, Google Talk, QQ, ICQ and Jabber, make cheap mobile VoIP calls and send free mobile messages. Already in use by millions of people in over 200 countries, EQO brings it all together in a social phonebook allowing you to chat with friends and family, all from one convenient application. EQO works with your existing mobile plan, and best of all, does not require a computer or any new contracts.