Run App from DMG?

[Scott Rossi]

Hi List:

Is it reasonable to have users run an app from a DMG volume on OS X, as
opposed to copying the app to their drive?

I have a colleague who wants to distribute an app in an easily launched
compressed format.  On Windows one can create a self-expanding ZIP that,
when double-clicked, automatically decompresses and launches the contained
EXE.  I'm wondering if a DMG file could serve the same purpose on OS X.  I
assume the DMG volume is not writable, but I don't think it matters in this
case since the files are a bunch of media (Flash movies, PDF, etc).

Thanks for any advice here.

Regards,

Scott Rossi
Creative Director
Tactile Media, Multimedia & Design