I'm flying from Houston to San Diego next week on United. Was planning on using my watch in place of my phone for boarding pass etc. Anyone done this so far (especially on United, or from Houston/San Diego)? - How did the TSA treat the watch in terms of scanning it? - Could you keep it on your wrist through security? - Any issues scanning at the gate to board? How convenient was it compared to the iPhone? Did passbook automatically place your boarding pass into the notification or glances area, or id you have to manually launch passbook each time? Thanks, Alex.