Just read that there will be over 20games launched tomorrow for PSmobile.
Some trailer for two of them:
Loot The Land:
Aqua Kitty - Milk Mine Defender
And Future Lab(the guys behind Velocity) will release 2 games and one of them is Fuel Tiracas.
PSN functionality like Online Leaderboard and Trophies will be released soon after release.
http://gamrconnect.vgchartz.com/thread.php?id=130023&page=1# Official Playstation Vita Thread! Come in and join!!!