This is the awesomest thing ever! Nicer template system, improved comment moderation, a great new default template, and to top it off, it’s all smaller than 1.2, despite having more features.
One thing confuses me, though: why is the default template a fixed-width layout? I thought a design that uses more of the available screen area was more efficient and accessible. And WordPress is all about open source, standards compliance, and accessibility, right?