User blog comment:Lord Loss/Monster Hunter Portable 3rd on the PS3/@comment-80.249.57.48-20110525114812/@comment-1011548-20110525144041

IIRC they announced the second analogue stick can be used for camera control. Can't find the source right now but I'm sure I've heard that somewhere. That aside, the controls will probably be exactly the same as the PSP versions.