The cards have been added to the card page, the first reviews are linked up, and the cards are available at Newegg right now. From what I've read so far it seems like it falls in line right between the HD 7950 and the HD 7970. The overclocking roundup for this new card will be coming soon.
Here is one of the best GTX 660 Tis that I've seen so far today:






The Stubbiest