I was poking through some old threads recently that were asking the same question, and from what I could tell, the answer was "no" -- at least, as far as an "official" (read: permanent, molded plastic) version goes. However, those "chopsados" that everyone is chatting up seem like they'd fit the bill, especially since you really only want to play one US game. Remember that you'd still need to open up the console and ground pin 29 of the Hu chip, regardless of method that you use to play US HuCards.