OK this is old (relatively speaking), but I also was gone for all of July and w/o intarwebz, so I easily could have missed it...

Accord to CPU-World, there are 12-core parts (I only bring it up since it was mentioned a page or two ago): Opteron 6234 - http://www.cpu-world.com/CPUs/Bulldo...%20series.html
This page shows the Opty 6274 having an ETA for 1200+ chips of November 1st http://www.shopblt.com/cgi-bin/shop/...BKU8925P.shtml