It's not a reimplementation but a gradual publish of existing code, upgraded to meet the required standards (some of it was not written with being open in mind).
WPF will not be available on non-Windows platforms. That has always been the case and will remain so - it has a far to deep integration with the OS for it to ever be platform independent and a reimplementation would be an absolutely ginormous effort.
And on a tangent, I guess the WPF thing was expected. But! I also thought WPF is mostly a re-implementation of all the windows widgets on top of a framebuffer - it doesn't use native win32 buttons, dropdowns, text rendering, etc etc...?
It's not a reimplementation but a gradual publish of existing code, upgraded to meet the required standards (some of it was not written with being open in mind).
WPF will not be available on non-Windows platforms. That has always been the case and will remain so - it has a far to deep integration with the OS for it to ever be platform independent and a reimplementation would be an absolutely ginormous effort.