Gmail on Android is especially bad when it comes to the back button: 1) you are in some app 2) a new email arrives and you open it trough the notification bar 3

Gmail on Android is especially bad when it comes to the back button: 1) you are in some app 2) a new email arrives and you open it trough the notification bar 3) you read the email and do whatever with it 4) hit back and you are staring at the home screen. Arghhh this one is driving me insane.