Skype will support Microsoft devices like Xbox and Kinect, Windows Phone and a wide array of Windows devices, and Microsoft will connect Skype users with Lync, Outlook, Xbox Live and other communities. Microsoft will continue to invest in and support Skype clients on non-Microsoft platforms.
http://www.microsoft.com/Presspass/press/2011/may11/05-10Cor...
They rebutted it. I don't really see how they could refute it.
If one was really naive I guess one might imagine that "invest in and support Skype clients on non-Microsoft platforms" might cover linux rather than a limited set of possible platforms. I have no worries about the java based client on my phone for example.
Arguable if they will or not, but I don't think they could have been more direct than this
See: http://www.afterdawn.com/news/press_releases/press_release.c...
and 2 years later: http://www.cio.com/article/532513/Microsoft_to_Drop_Linux_Un...