Android phones /do/ do this. Pretty much all the phones released in the past 3-4 years support one of the mobile monitor connection specs that'll send either a

Android phones /do/ do this. Pretty much all the phones released in the past 3-4 years support one of the mobile monitor connection specs that'll send either a displayport or hdmi signal through the USB port. I've not personally used it much, but it's something that I do know some people use a considerable amount of the time for connecting to a larger monitor, giving presentations, etc.