Here's a good post from the man himself, Jonathan Schwartz, filling in some of the background to the MySQL deal. It also has this great quote:
L in LAMP stands for Linux, not Looney. Customers prioritize MySQL's platform choices, not Sun. As with Glassfish, their number one download platform is still Windows - and we're very committed to those developers, as well.
It's good to hear the talk; I look forward to seeing the walk....