Actually I have never seen Masado's blog. Do you have a link for it? I have seen the Darkrai floating around on Pokemon.com too. I also heard that there is a sequel to Pokemon Ranger that was announced, it will be released in March in Japan, so I am wondering if one of the secret Pokemon will be a part of that game, like Manaphy was in the first Pokemon Ranger.
Also, where this thread was posted isn't really a real forum, (I know, that sounds weird XD) it is just kind of a strange area that is a "parent forum" for the sub-forums, (D/P, R/S/E/FR/LG, and their sub-forums, the Team Rating forums.) although it doesn't really have a purpose of it's own, it can still be posted in for some reason. Anyways, I will go ahead and redirect this to the Diamond/Pearl forum, where people would be more likely to see it.