I would like to be able to use GIMP as a MacOS X Service. That is, I want to be able to select an image in a document, choose Services->Edit Image in GIMP, bring the image into GIMP, make changes, save it out, and have the image updated.
The Services menu worked really well in NeXTSTEP but most MacOS X users have no clue what it is for. It would be nice to be able to start using it again.