We're having a hard time thinking of other instances of a simultaneous patch announcement for two different games. Konami has issued a rare Two Patch Announcement for Silent Hill Downpour
and Silent Hill HD Collection
, planning to fix framerate problems and audio synching in the former, and auto-save issues in the latter.
Both updates will be released on PlayStation 3 and Xbox 360 in "the coming weeks." Still unaddressed, however, is the strange bug that occasionally causes the in-game environment to get all creepy and evil-looking.