It's a future-proofing feature, I think. There is no way I would buy an 8gb card today, but somewhere down the line, when they drop to $20 or so card, I'd like to be able to buy one without having to buy a new flashcard too. So yeh, R4 not supporting it is something I think will bite people in the ass at some point. Especially since other similarly priced flashcards support it.