This is just a little something I threw together this weekend to make life a little easier. git-railed is a simple script that creates a new rails app, initializes a new git repository, moving the db config and setting up the ignores for you. You can use it as a gem, and just run it like:
git-railed obligatory_blog
Or, just install it as a sake task, and run it llike:
sake git-railed APP=obligatory_blog
Installation notes can be found in the README, get it at github: http://github.com/ambethia/git-railed/tree/master
Please fork it, and customize the behaviors to your hearts content (git-merbed?).
Take a look at rails templates: http://m.onkey.org/2008/12/4/rails-templates