An accessory idea for the quest is a external camera similar to the playstation one but monochrome and with built in battery, this could be used for better hand tracking or better controller tracking when behind you, this could also help track a phone to display virtually by tracking fingers on front and back of phone, allowing for viewing your phone without exiting VR, and you don't have to send video over air you could process controller / hand on the camera. Include quest 1 please