https://www.facebook.com/bbcnews
Today the BBC is doing a live interview using facebook live and a mobile phone.
Youtube and twitter also have such systems.
I suspect we will see more cameras that you can bluetooth or wifi to your mobile phone to do such shows. Mainly as cameras built into even the best cameras produce not the best results, plus it mean you can have the camera on a stand or being hand held, while you sit and read messages and reply to texts during your broadcasts.
Interestingly webcam adult shows seem to now be getting a bit behind in technology.
I wonder how many webcam sites are set up to allow there 'stars' to broadcast using a mobile phone and text there viewers back live.