Standalone DMG Packer?

[dovy]

Is there any way to just use this as a standalone DMG packer? I already generate a Sparkle appcast via a directory listing and PHP. I simply want this to pull the app version number from the app itself without having to incorporate it into my XCode project. Give it the .app, grab the version, compile the installer.

Is that possible?

[stevschmid]

I'm interested in this as well.