According to Sinobi (latest update) they've shipped 100.000 isn't it?
This game should be a hit for sure:
http://www.wild-arms.net/XF/
A complete new Wild Arms "Crose Fire" (Simulation / RPG game) for the PSP and you can use Wild Arms The Vth Vanguard to extend a few functions by using the USB cable, sounds great!
More new PSP only RPG games have to come to the PSP, Brave Story, Jeanne d'Arc are wonderful games! I won't be surprised when people are starting to be fed up with the constant remakes of Final Fantasy, I think the Japanese are almost dying to get Crisis Core.