GNOME Evolution, that is. This is one of those packages that has been bugging me for years; it would build but not run. But in the process of buildings Contacts, Dates, and Tasks, which also use Evolution-Data-Server but have very simple interfaces, I discovered that NSS still wasn't working, causing E-D-S to not initialize. So I rebuilt E-D-S and Evolution without NSS, and voila, it runs like a charm.
So Evolution will be part of the next upload, albeit without SSL support, together with the rest of GNOME 2.26.2. As for SSL support, as much as I would like to have it, I'll admit trying to fix NSPR/NSS again isn't my highest priority right now. (Why can't they use something more normal, like GnuTLS, instead?) As always, PTC.