It’s still early, but the dragable, tearable tab control for WPF, “dragablz” is now up on GitHub. There is a demo project – pretty basic – but illustrates what to do.
I intend to build out more functionality, styles and documentation, so expect to see improvements, especially over Christmas 2014/2015 as I have a few weeks off the day job.
Get it from here: https://github.com/ButchersBoy/Dragablz/
Enjoy