iOS 5 and notifications
For those of you running iOS 5, the new Notification Center (US spelling) is a convenient place to access all of your notifications. However for me, my own apps were DISABLED by default. You will still get a small banner-style notification at the top of the screen, but this is only displayed for a few seconds so is likely to be missed. To fix this, go to the main Settings app, and select Notifications. Find my apps (Account Tracker and/or Meter Readings) and turn “Notification Center” to ON. You can also choose how you want these displayed (banner or alert) as well as other options like sounds or lock screen … etc.