Since last week connecting Skype and Lync is a reality. I have tested this with our Lync infrastructure and it works great, voice in perfect quality. Finally, I can reach almost anyone in the world from Lync.
Now we just need Skype on the XBOX 360 and all my communication needs would be fulfilled. Also note that Skype Video calls from Lync are not possible yet, but this can only be a matter of weeks or month to enable (I hope).
Skype and Lync: Connecting the Living Room to the Board Room