What is the 'Megaphone' application?

Two Minion toy standing on each other where the top one is using a megaphone.

Megaphone is some hidden application ServiceNow made but didn't release.

This is not visible unless you change the module roles from maint to admin.

This uses the table, sys_broadcast_message and that creates a message as depicted in this thread.

Screenshot of a form for the hidden Megaphone application in ServiceNow