Rails 3 bootstrap

Gemfile

# bootstrap a new rails 3.0 project from the 3-0-stable branch
#
#  mkdir new_project
#
# place this Gemfile in new_project
#
#  bundle install --path .gems
#  bundle exec rails -v
#  bundle exec rails new .
#
# merge the installer Gemfile when prompted; keep the rails gem decl below.

source 'http://rubygems.org'

gem "rails", 
  :git    => "git://github.com/rails/rails.git",
  :branch => "3-0-stable"