I don't understand how this would confirm the delay was due to production issues like some of you guys say. Right before the day of the announcement about the first "official" delay, Kaz repeatedly said March 2010 for Japan, in numerous interviews.
It just doesn't make sense to say it will release March 2010 in Japan, then a day later he thinks to himself, "Nope, never mind. Let's delay it so we can polish it more." It sounds more like Sony discussing behind PD's back on when they really want to release the game and take advantage of its popularity. It's business, so of course they'll take advantage of the consumers and fans.
When Kaz said 90% in January, I do believe him because the official cover art was released on that same month and the fact that it made sense to the progression of 65% from TGS 09. GoW III was the same. No, this is not solid enough of a support, but it makes sense, at least.