Some links for starting off Rails 3 beta application development

Last 5 Feb, 2010 the rails 3 first public beta release was out. It is the most anticipated version from the view of developers as performance improvement will be significant. Refer to the release notes here at http://guides.rails.info/3_0_release_notes.html

Ryan has given a starting screencast at http://railscasts.com/episodes/200-rails-3-beta-and-rvm.
Here at http://www.rubyinside.com/rails-3-0-beta-links-2966.html you will find some starting materials.