I don't think WebKit can embed NSViews either? At least not unless you modify the source code, iirc there are still some bits of the old Netscape plugin code st

I don't think WebKit can embed NSViews either? At least not unless you modify the source code, iirc there are still some bits of the old Netscape plugin code still there. The hard part isn't native embedding web, it's that if you start with web you then can't easily stick a native view into e.g. an iframe.