Before Game Center, OpenFeint and similar third-party platforms carried the weight of the iOS platform when it came to social networking in gaming. Even after Game Center debuted with its leaderboards and achievements, OpenFeint still saw plenty of use, including 1.4 million additional users over the Christmas holidays. With more than 5000 OpenFeint games reaching an audience of 75 million users, it's unsurprising that Japanese social network GREE has just purchased OpenFeint for US$104 million.
GREE is already a well-established network in
