With ICS comes the ability to disable some of the apps. However, I've noticed that despite being disabled, the option to force close remains. This leads one to believe that the apps aren't really disabled. So my question is what does disabling an app really do? What does force closing an app really do? Will disbling an app reduce the draw on the battery? Will force closing reduce the draw on the battery? Will the combination of disabling & force closing have a positive effect on battery life?