Guys i think You're over reading on the AdHoc App for PS3 not getting a fix on western markets...
I think that CRAPcom and SONY didn't want to make a effort for a game that don't sell well on portables on the west, being that MH3GHD was a flop even in japan... conclusion: MH don't sell on home consoles enough as to make a effort for releasing a HD port on the West!