Unless AMD has tech to make Crossfire work on every game out there (or, hell, even half of them) a dual GPU card would be dumb. They're expensive, they're incredibly hot, they require a lot of power, and they don't work in every situation. Dual-GPU cards have always been dumb, even when both companies were heavily pushing multi-GPU support in games.
yea I am not sure why people keep asking for a dual gpu card when almost no new game supports it out of the box. Until they make a dual GPU card work out of the box. there is no point in it. May be one they they will get dual die working on a single card that will just work with any software. Until then developers aren't likely to support it. So I am not sure why it makes any sense what so ever to make a dual gpu card. They do have a pro card but that is because pro applications support dual gpu and its helpful. Its useless in new games.