Holy snap. Will they make the 5970X2?
I don't think it would flex because it has what looks like some little plastic thingie that keeps it straight. I don't like the design of the shroud for the thing, it's all...funky. I don't like the slots in the shroud either. Lots of heat going to get dumped into the case, especially if you have two chips on full load, and a lovely 4700RPM fan.
If I were to buy this thing I'd honestly tape those slots shut, and then cut a bigger hole for the air to go through. Not so that the vent is all slotted, literally so that it's one big hole where the outputs are. WIN.