Apple's new iOS 5.1 seems to be getting better grades at preserving battery life. But not everyone is happy.
A glance at Apple's Support Communities uncovered a few threads on the topic.
Some posters found an improvement in the battery charge. One recounted a full day of activity using the phone and said "I've had days of not doing anything and lost more charge than this." Another reported positive results with a "significant improvement." A third poster said that the "iOS update seems to have really helped my iPhone battery drain … Read more