- Vibration should be disabled by the OS, not the apps. - Network activity should be as predictable as possible, because people often have to pay by the megaby

- Vibration should be disabled by the OS, not the apps. - Network activity should be as predictable as possible, because people often have to pay by the megabyte, and any "smart" changes in activity increase the chance that people will be unpleasantly surprised. - The OS should predict remaining battery life, not the apps. If there's going to be a new API it should let the apps inform the OS of future activity so the OS can make better predictions. - Changing color to reduce battery drain only makes a noticeable difference with OLED. It will annoy the more common LCD users for no benefit to them.