Is there any tool for Unity to create Skype like audio (and video) chat in games?

Is there any tool for Unity to create Skype like audio (and video) chat in Unity games?

-Kaya

For iOS there is a GameCenter plugin

But thats basically it.
On the desktop plugins require pro and don’t run in the webplayer, as such you can neither add voice chat nor webcam streaming to a webplayer for example.