This has been such a fun project.  Couldn't keep myself away:

http://blog.inquirylabs.com/2006/02/19/syncpeople-on-rails-07/

== Summary ==
Easily navigate between ActionMailer models, views, partials, controllers, helpers, javascripts and stylesheets with a single key (keypad 'enter') in TextMate.  This release also adds an Enhanced TODO List (ctrl-shift-t) and is now officially LGPL licensed.

Duane Johnson
(canadaduane)
http://blog.inquirylabs.com/