package cosmetics: bundle the pkg inside a dmg
Pkg works, but it can be nicer. As an example, the Virtualbox installer bundles a pkg inside a .dmg. this .dmg opens a volume with the typical background image, with some instructions (1. double click on installer, and 2. run the app from /Applications folder), plus some doumentation (UserManual.pdf and FoorbarUninstall.tool).
I think that's a layout that we could follow.