Jon Udell about Mozilla Firebird 0.6. Really nice to know about the XML support there. The package also contains the mozctlx.dll, that's currently a (spare-time) project of Adam Lock (member of the Netscape Dev team).
But how about a native (means .NET managed) render control based on Gecko or a layered framework like Apple's WebCore ? If there would be enough time I would wrote it by myself. Someone out there just working on this kind of bits?