One of the most vexing challenges for WebRTC developers is “what do you do with IE and Safari?” Do you ignore them? Tell your users to use something else? Can you even tell them what to do? Maybe you fall back to flash? There are no easy answers and WebRTC is supposed to be easy, right?
Perhaps you just wait and hope that Microsoft and Apple implement WebRTC soon? This brings a lot of risk – what exactly are they going to implement? For Microsoft it seems it will likely be ORTC, definitely not the current spec. When exactly are they going to implement it? What is Apple going to do? What will you miss out on in the mean time?