I'm trying textmate. How best to be introduced to this editor? Is there a tutorial anywhere -- especially a rails specific one?

DHH has a couple of movies featuring textmate. One is called def_end.mov and you can find it at http://media.nextangle.com/textmate/def_end.mov, referenced in his blog entry at http://www.loudthinking.com/arc/000270.html.

The movie shows what is happening, but doesn't indicate what keys are being pressed. He types

   Summer

does something and it becomes

   class Summer

   end

etc. What key sequences are doing this expansion?

Thanks,