I think the main feature of the side button - friends, is a total waste of time. I just never use it. Sending heartbeats, touches or those silly drawings is something you do once and after realising how bad they are you never do again. If you text or call somebody you are going to need to use your voice so why not use Siri to invoke the call or text anyway? I think we should have been given an option for the button's functionality. It would be far better used for invoking and cycling through glances or notifications or invoking the app page. I've sent feedback to Apple. Can you think of a better function for the side button?