The first PSP game to be released under imageepoch's JRPG.jp banner, Final Promise Story, is out in Japan soon; the OP went live recently.
Imageepoch have a youtube channel with other trailers, video clips for most of the main cast, and other segments showing certain game mechanics.
No word on a Western release yet, but NIS America have an agreement of sorts with imageepoch in general (but not yet for any game in particular).