Jane Wells announced earlier this month that Daisy Olsen will be heading up the Theme Developer Handbook project. Jane also asked if anyone would be willing to help.
The Theme Developer Handbook project joins the in-progress Plugin Developer Handbook, and both projects are intended to serve as an intro for beginning developers as well as a tool for experienced developers.
Daisy Olsen is a WordPress developer and Genesis theme framework specialist. She also recently spoke at WordCamp NYC about choosing the right theme for your blog.
You can follow Daisy Olsen on Twitter at @DaisyOlsen.