Some movement on Google Groups?

It has been only a week since I thought about Google Groups and imagine my surprise when I noticed this little box on the "Join this group" page:

A select box for your e-mail address on Google Groups

You can finally also select your Google Domain Apps e-mail addresses when joining a group, which was very high on my all-time most-wanted list for a really long time. It's not perfect yet (you can't use your aliases yet) but it's definitely a nice enough addition on its own :D