Some programs, such as VoodooPad, will let you edit the current text in an external text editor, such as TextMate, BBEdit, or SubEthaEdit. This is totally awesome. I've been using a gnarly InputManager hack to do the same thing with Xjournal, but that's going to stop working once I upgrade to 10.5, and InputManagers are evil in the first place, so I'd love it if ODB support could be included in Xjournal natively.
( nick.fagerlund@gmail.com )