WSSF 2010 Open Source for Visual Studio 2012
I just ported the Web Service Software Factory Modeling Edition (2010 Open Source) version to VS2012 RTM.
Notice that this is only the source code that builds and run from VS2012 (Windows 7 and Windows 8) but there's not refactoring or leverage of the new features in NET v4.5.
You can download it from here. Don't forget to read the Know issues in the download page.