MSI are fortunately one of the few non-reference partners that take building the cards to the same standard as the reference design or better, actually seriously. The Twin-Frozr II cooler may be ridiculously named, but it's a very potent cooling solution used on a variety of cards, which allows a potentially very quiet alternative, for usually, quite a reasonable price. IMHO, it's high time the twin frozr II cooler appeared on the HD6900 series. If it can handle the heat of the GTX470, it can certainly handle those cards.
I really need a card like the MSI N560GTX TI Twin Frozr II OC because I value great cooling solutions with. Can't have a great video card with out a great cooler that the MSI n560TX TI Win Frozr OC provides.
Coincidentally I'm eyeing up one of these cards to replace my elderly 7800GTX 256mb. I like the design of the MSI N560GTX Ti Twin Frozr II OC more than the competition; if I find myself inexplicably down a dark alley the MSI card is definitely the one I want jumping me.