I've been waiting for the Jamf App Installers feature for awhile now. I think it's great! Some issues though I've run into that should be addressed in the future:
-Google Chrome crashes if the app installer pushes the update in the background. A user will click new tab and it will say "crashed". This needs to be more graceful. Either prompt a message to close the app in notifications, or allow deferral control... something like how Installomator does it.
-Allow the same scoping that policies and config profiles use. It would allow more than one smart group to be targeted.
-Logs section for the installer
-Allow triggering events, especially useful during DEPNotify. I currently use Installomator, but App Installers could replace the need to do that if it was able to be triggered by event for the first install.
-Allow for Gradual Rollout. Create the ability to gradually roll this out in automated rings over a set time period (3 days-1 week?). This way a bad update won't hose thousands of systems.
-Allow a Rollback package. Keep one instance of the previous App pkg to do a one click revert.