Microsoft Using Linux To Optimize Skype Traffic
An anonymous reader writes "A security researcher believes that Microsoft has overhauled Skype, with thousands of Linux boxes serving as the 'supernodes' that route calls between users of the voice-over-IP service. Kostya Kortchinsky of Immunity Security 'discovered the Linux supernodes using a Skype probing technique he and colleague Fabrice Desclaux first demonstrated in 2006,' according to Ars Technica. The drastic infrastructure change doesn't affect the peer-to-peer nature of the calls between Skype users."
Or it shows that they are willing to take from FOSS and not give anything back, which confirms some of the things we've said all along.
One of the two.