Can't wait to see how this all plays out. I was signed into PSN on my 60gb when the shit went down (didn't get signed out or anything), and after I turned it off is when I saw this topic. No idea if mine is affected or not, sounds like I might've dodged a bullet since I have a refurbed PS3 (original YLOD'd).
Glad I quit playing when I did either way, I was about to get the 8 skill max trophy in White Knight Chronicles, that took me about 50-60 hours of just grinding levels (not to mention the other 20 or so playing normally). I would've been pissed if I got that trophy and found out it wouldn't sync.