I don't care that much about hidden villages ^^ i just remembered that stupid OAV having to do with cleaning carbage in front of a waterfall >.< how lame can you get.. your 1 and only entrance to you village has to be kept clean by Konoha ninjas !!
Well more than likely well learn a little bit more about Hidan when the duo encounters some of Konoha's Ninjas. Its likely a random Konoha Ninja (hint hint: possibly kakashi) will blurt out where Hidan is from when he/she first confronts the Akatsuki duo. And now that I think back to it, back during the chuunin exams in part 1, way before the 2nd OAV/OVA had actually released, there were Ninjas in the waiting room before test #1 that had the waterfall symbol, so that OAV/OVA can still be considered non-canon until Kishi says so, lol.
[color=maroon]Naruto Predictions/statements:<br />1 - YONDAIME IS DEAD<br />2 - Akatsuki leader is either Uchiha Madara/someone related to him, or a descendant of the unknown clan which Kurenai hails from<br />3 - Kakashi will die by the end of the entire Naruto series, as well as at least ONE Sannin besides Orochimaru.