What can you do with WebRTC? Obviously you can use it to add video or audio chatting to your web or mobile applications but you could also design a custom chat or communications app using it. Google’s own Google Talk is in the process of being converted to use WebRTC. In principle a WebRTC application could replicate the facilities in Live Messenger, Skype, ICQ, AIM and so on. So should you rush out and start building apps? Not just yet. The current state of the software is such that it is for enthusiastic early starters only. It really is at the stage where browser writers can build it into their next version. Currently the demo app needs you to build a custom server and other additional software. In the final version you will simply write some JavaScript.