OK - here are a few cenarios I have tested and figured I would share. While we all are looking for a great chat server, we need one that not only allows those with cameras and mics to communicate, but also those without - and more than just text chats.
User A is on PC with no camera or mic, User B is on mobile devices with camera and mic:
User B initiates chat - User A gets message to accept - User A gets Audio and Videoof user B, but no video or audio for user B to see of user A.
User A initiates chat - User B gets notification and user A gets no audio or video of user B as well as user B has no audio or video of user A
User A is on PC with Mic and no camera, user B is on mobile device with camera and mic:
User B initiates chat - User A gets message to accept - User A gets audio and video of user B and user B, but no video for user B to see of user A but there is audio.
User A initiates chat - User B gets notification and user A gets no audio or video of user B as well as user B has no audio or video of user A
So, basically - if you are on a pc with no camera, you are screwed. If you dont have a camera or a mic - you are double screwed. It seems this is more for mobile devices - and with JUN10R's review of possible high data consumption - of those who have an unlimited data plan.