I’ve updated my articles to point out the need to update Bundler:

Installing Rails[1]

Rails on Heroku[2]

I’m looking forward to Tokaido from @wycats so I can cut the Installing Rails article down to one paragraph.

[1]http://railsapps.github.com/installing-rails.html

[2]http://railsapps.github.com/rails-heroku-tutorial.html