The new Version 0.971 is now available in the Asset Store! It comes with a few bug fixes, easier configuration via the Unity Editor and the first test versions for Mac and Android support!
Note that Mozilla stun server is currently unavailable. If you have any connection problems through firewalls use “stun:stun.l.google.com:19302″ instead! I will provide an own stun server for testing soon to avoid those problems in the future.