I've set my General Purpose App from stun to kill
While trying to figure out OmniFocus, I stumbled upon this: OmniFocus: My Approach by Fraser Speirs
I think there’s an intimidating middle ground, though, between a truly general purpose application like Keynote or Excel and a purely specific purpose app like Photobooth, Google Earth or Skype. These applications today look a lot like structured databases. There are many exmaples - iTunes, iPhoto, Aperture, Lightroom, Delicious Library, Evernote, Mail - and I think there is a lot of anxiety amongst users about how to approach these applications.
Some of the applications I mentioned are easier to approach than others, due to the greater amount of direction (or reduced flexibility) they give to the user’s actions. I suggest to you that iPhoto provides more direction to the user than Aperture and is therefore easier for most people to approach.

