I just released both the XMLRPC.universal and WordPressAPI packages on Nuget. The WordPressAPI has also been changed to use the Nuget version of XMLRPC instead of needing a local copy of the project. Both of these projects should now be stable enough to use, although the WordPress client still only exposes a limited amount of the API.
In the coming days I will be releasing a starter project using these libraries in an universal app. So make sure you stay tuned for that new project.
The Nuget projects can be found at: