I think along with having the convenience of the 'Remote Starter' in your vehicle that receiving some type of notice on the key fab when the vehicle has indeed started.  I would like to suggest adding a dot light to the key fab and when the steps are taken to remote start the vehicle the light will turn on indicating the vehicle has succesfully started up.  Also, if a different color indicator letting you know when the battery to the key fab is needing to be replaced.