Sony is holding a "collaboration festival" campaign with PlayStation Vita and the platform's official 3G service provider, NTT DoCoMo.
The collaboration will span three months. Each month, Sony will unveil a piece of collaborative content for one Vita game.
Starting off the campaign, Namco Bandai's Ridge Racer now has a new SYNCi DOCOMO SP car. This is available as a free download via PlayStation Store.
May's game is Minna to Issyo. June's game is Hot Shots Golf 6. Sony has not yet announced the items for these two games.
Visit the campaign site here.