The latest issue of Famitsu has some details on a new RPG called Coded Soul. The game is being made for the PSP by Kouji Okada, creator of the Shin Megami Tensei series of games. He also brought Monster Kingdom: Jewel Summoner to the PSP. Just like this game, the game will feature ad-hoc play and focus on the collection of monsters for battle. Famitsu also reveals that the game will somehow link up to the PS3 RPG, Folklore (FolkSoul in Japan). Possible release in February for Japan.
Source: PSP Fanboy, RPGLand with scan