Rails 3.1 Asset Pipeline on Heroku

After updating my Rails 3.0.4 app to 3.1 on Heroku, I wanted to use the built in SASS functionality.  What I didn't realize was that you have to also use the asset pipeline to get the built in support.  I had skipped this in my previous step.  Using the same railscast, I converted my app to use the asset pipeline.  This did not work on heroku.

Long story short, you need to use the cedar stack on heroku for the asset pipeline to work well.  Here are the commands I saved for creating new apps on heroku in the future:

heroku create app_name --addons custom_domains -r git_remote -s cedar
heroku run rake db:migrate --app app_name
heroku domains:add www.your_domain.com --app app_name
change dns entry to point to app_name.heroku.com

Heroku References:
http://devcenter.heroku.com/articles/custom-domains
http://devcenter.heroku.com/articles/rails31_heroku_cedar