If you install your gems without rdoc on, you can just use open_gem (http://github.com/adamsanderson/open_gem http://github.com/adamsanderson/open_gem) to build

If you install your gems without rdoc on, you can just use open_gem (http://github.com/adamsanderson/open_gem http://github.com/adamsanderson/open_gem) to build the rdocs on the fly with `gem read <gemname>`