I know this is old news, but wasn't the release going to be November if A0 turned out with high enough yields and clocks. Also that was the same story with late December with A1. The current February to March time line is based on good A2 silicon. I always thought that hoping A0 turned out perfect was a REALLY long shot, but there was at least a little bit of hope for A1, but it didn't materialize.

Thinking about it, I think my silicon revision numbers are off by one, they should all be one higher.