We've learned that R700, a dual RV770 product, won't launch alongside with RV770 products. As we've said before, both RV770 are scheduled for late June launch, and it looks like the dual chip card won't launch simultaneously.
R700 will launch at least one month later, and you can probably blame the complicated design and drivers for such inconvenient timing.
The way it looks now, GT200 based cards will launch first and then will AMD follow with its high-end card.
Also read
RV770 GDDR5 to sample soon
RV770 to launch in the last week of June
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R700 to launch after RV770

Same as last time