Fred> (It's enough to make me think that Andrew may have been Fred> right about not integrating the XML support the way we did.)
I wonder if decoupling more of the standard library isn't a good idea, although it flies in the face of "batteries included". One thing I like about XEmacs's model is that I kind of get both for little effort. I want all the latest packages, but I don't want to re-install XEmacs to get them. So I use the package manager, which isn't exactly one-click-updates, but it's pretty simple to use.
We'd still have to deal with incompatibilities in core modules, and in the language spec, but those probably require different tools.