This is the first time I've tried the iOS 5 reminders app, I can see how this might be useful but what I want to know could this be a battery killer? I setup a reminder for tomorrow morning when I leave home to remind me to stop off at the shop for something. I noticed because I'm setting the remind by location rather than a day and time the location service icon is constantly up by the batter icon. Surely if this is a reminder that is hours away or days away and your not on charge your battery will be dead in no time? Please correct me if I'm wrong in what I'm thinking.