This might be interesting for any addon authors who use TextMate (a very nice text editor for the Macintosh). I've put together a little TextMate bundle for writing WoW addons. It builds upon TM's standard Lua support with additional syntax highlighting for WoW API functions. There is also highlighting for .toc files, and some templates for both standard and ACE2 WoW addons.

No, it's not the greatest thing since sliced bread, but I find it kind of useful. Suggestions and contributions are much appreciated.

Download and unzip the bundle, then either double click on it, or insert it manually into Library/Application Support/TextMate/Bundles in your home directory.

For Lua syntax highlighting to work correctly, you must also install TextMate's language support bundle for Lua. You can download the bundle from here:
http://phrogz.net/tmp/Lua.tmbundle.tar.gz

or get it via svn (highly recommended):
svn export http://macromates.com/svn/Bundles/trunk/Bundles/Lua.tmbundle

UPDATES:
* updated for WoW Client v2.0.8 (6403)
* pressing Enter while cursor is within the name of a WoW API function will open that function's WoW Wiki page in your default browser.
* additional highlighting support for protected functions (TextMate scope selector: support.function.wow.protected)
* now also available at WoW Interface
* have fun!

-Tab