Imo.im announced today it will begin offering free voice calling for iOS users via its imo instant messenger app. The free service allows users running iOS version 3.1 to make voice calls through Wi-Fi and 3G connections. According to imo, "free voice calling eliminates the cost of mobile minutes without any loss in the quality of the connection and, when connected to Wi-Fi, requires no data usage."
The instant messaging client connects users to 11 of the top third-party messaging services. It supports Facebook Chat, Google Talk, Skype, MSN, ICQ/AIM, Yahoo, Jabber, Hyves, VKontakte, Myspace and Steam. The app features group messaging, photo sharing, concurrent sessions on different devices, searchable chat history and provides the ability to share multimedia files with other users.