Skype announced that an open source version of the Linux client is currently under development in a blog post by Stanislav Karchebny. “There's an open source version of Linux client being developed. This will be a part of a larger offering, but we can't tell you much about that right now," wrote Karchebny.
The original Linux client had been released several years ago, but a new open source client could mean community focused developments. Skype expects that “having an open-source user interface will help us get adopted in the multicultural land of Linux distributions, as well as on other platforms, and will speed up further development.”
Within the comments of the post, users were hoping to see Skype also unlock the Skype Protocol to the open source community. Unless that is part of the “larger offering”, that Karchebny mentions, it appears for the moment that their plans are to open only the source to client interface.