Jane, over on the WordPress development blog:
Designers need a list to call their own, and now we have one. You can sign up for the wp-ui list to discuss ways to improve the interface or user experience of WordPress, and to discuss progress on design-related projects for the open source project, like the design challenges we’re going to have.
There’s lots of great design minds in the WordPress community, we just haven’t done a good enough job yet of tapping into that talent. It’ll be most excellent to see what we can all do as a team!