Platform agnosticism is something that Qt exists to provide... Your point is taken that the Qt backend would need to be ported twice. For WP8+, I suppose that would involve a DX11 port of ANGLE for Qt5. Which seems to have been merged in, actually https://codereview.qt-project.org/#/c/52810/. What was WP7? DX9? Angle covers that, as well. So, I'm not sure why we're not seeing it, at least on WP8+ given that it does have native code support. https://msdn.microsoft.com/en-us/library/windows/apps/jj6816...