User Profile

What is the best way to go about attending Labs and/or filing additional Feedback requests to try to move this forward? In researching this, I've learned that visually impaired users also make use of overlays on hardware keyboards for their iPads. Keyboard extensions also do not have access to hardware keyboard input. I had not realized lack of access to that input is an accessibility issue for a portion of our users. I understand that presently, this is not possible. What I'm asking is: what can I learn or do during WWDC week to help lobby on behalf of our visually impaired users to get improvements considered and/or made in due course in this area? Thanks!