Sorry this is taking quite so long. I have been working on DD_roundies as I have found available time every day this week.
New features to expect:
Same background-position and background-repeat support that is present in DD_belatedPNG.
Multiple border-widths: the VML is no longer simply one or two nodes, with one of them having a strokeWeight property. It is now three VML nodes: one for the background color, one for the background image (if exists), and one for multiple border thicknesses. A single stroke weight would not suffice.
Multiple border-radii, modeled after Firefox’s implementation. You can do implied property mirroring, too, such as ’10px 20px’ would actually be interpreted as ’10px 20px 10px 20px’.