Having Uninterrupted Video Playback
Currently video playback on Ubuntu can be interrupted by power management events, instant messaging pop ups, screen savers and other visually assisted asynchronous queues. By making the programs that dispatch those visual queue become 'aware' that the user is watching visual media (video or stills) we could provide a better and continues visual media playback experience. This could be achived in as simple as in using a flag file that visual media programs will create on startup and erase when done, and notification delivering programs will make sure this file does not exist before they actually deliver. This will result as a realtively non intrusive change to most of playback software and even smaller change to the notification delivering mechanism.
added screen savers to list of programs that can interrupt.