Now that I have my app running in the background it would be nice to display limited information to the user on the Status Bar at the top of the screen. Is there a way to put an image or a 2-3 digit number on the Status Bar from an app running in the background?
Or is there some other way to display information on the screen from the background?
You can put a number badge on your app icon or show a local notification (note that I haven't tried it from a background running app). There isn't any other thing that you can do.