European retailer Play.com has added a listing to their website for Monster Hunter Portable 3 for the PlayStation Vita. Since there has been no word from publisher Capcom on the matter yet, this is nothing more than a rumor. However, considering how the Monster Hunter series continually dominates in terms of sales over in Japan, and how the MH games are typically released for PSP, it seems very likely that such a game is well on its way.
At the time of this writing the link to the listing was still live, so if this is just a rumor with no merit then Capcom will have to address this very soon. If not though, then Vita owners should prepare to do battle with dinosaurs and all other kinds of enormous, dangerous creatures.