I have an app update sitting App Store for more than one day. In preference/app store, I have all options checked including "install app updates". I wonder whether I am being impatient, or there is some bug in this. Have anybody had auto update work? Edit: to answer myself. The app I talked about updated itself days after when the badge first appeared on App Store. I have no idea what triggered it and how long the delay is supposed to be... I guess nobody really cares about these anyway.