Terada showed a sneak peak of a new outfit for Phantasy Star Portable 2 Infinity. It's based off of Yoko Littner from Gurren Lagann. No expected release date was revealed considering the Playstation Network is still down.
Final Guide and Materials Collection
Two books are expected to release in the future. The first book, Phantasy Star Portable 2 Infinity Final Guide, is expected to release on 5/30/2011. The next book, Phantasy Star Portable 2 Infinity Infinity Guide + Setting Materials Collection, is expected to release sometime in July. As for the latter book, I believe this will show concept designs of various things in PSP2i (like characters, weapons, etc?) as well as contain a complete guide for the game.
With Otaku events coming up in the summer, Galaxy is selling a cosplay outfit for Nagisa. Interestingly you can choose your size and gender for the outfit. So I guess I'd be in the XL category?