Yep I've got one sitting on the shelf. Through some misfortunes of luck I managed not to install it yet. Should have had it installed 3 weeks ago over the 3 day MLK weekend, but the delivery guy attempted during the 1 hour I wasn't home and I didn't get it until after the day I planned to install it. Two weekends ago was bad for me, and this past weekend I planned on it only to find out I needed a USB floppy drive to do the F6 thing to install drivers, a regular flash drive won't cut it. The USB floppy drive is supposed to arrive from Newegg tomorrow, but Snowmaggedon 2011 will likely get in the way.
So now I'm waiting to see what Asus is going to do for me. I bought my motherboard from ExcaliberPC and their return policy clearly states that the motherboard is now irrevocably the business of Asus and myself, not them (only 14 day return period). I will probably end up installing it as planned though, Asus normally will send you a replacement and let you install it before sending the bad one back during the first year of the warranty.
But what of the sata problem? I run 4 hard drives, two in a Raid 1 mirror, two independent, and two sata optical drives. My motherboard (the Evo) has exactly 6 sata connections that should be unaffected by the problem, if I use the two external sata connections. So I'm good there, for now. No room for expansion, and its an ugly solution. If I can verify claims of no chance of data corruption, I may just use the "bad" sata ports to force the error, to occur to guarantee I can replace the motherboard eventually, depending on what Asus says.