Agile Web Development With Rails 3rd Ed. covers Rails 2.0!

The tireless Pragmatic programmers have released a new version of Agile Web Development with Rails, and it covers Rails 2.0!

Its still in beta form, but you can get the PDF version online. If you bought a copy of the 2nd edition since March 2008 you can get a coupon for a free upgrade.

See the pragmatic web site for details.