hmm thinks it is probably gravity daze as i love new ips and this looks really cool. After that it's Uncharted: Golden Abyss and Wipeout 2048.
But i have lost some hype now over the summer because of no new news :( hoppefully gamescom will change that.
http://gamrconnect.vgchartz.com/thread.php?id=130023&page=1# Official Playstation Vita Thread! Come in and join!!!