Some changes I'm considering with Thematic 0.7:
Renaming the functions folder. Suggestions?
Adding in new hooks: thematic_header(), thematic_footer(), thematic_sidebar(). thematic_sidebar would earn it's un-semantic name for hooking into sidebar.php. I can see that being very useful.
Styles folder will contain images.css and default.css. The style.css will then import default.css which will give it the current look. This'll make things easier for people making Child Themes similar to the default look but with a different structure. You import a structure [like @import(../3c-r-fixed.css);] and then import the default look [@import(../default.css);]. With images.css, you'll be able to get a baseline for all the WP image styles.
Possibly adding simple-18px.css and simple-21px.css to the styles folder. Sort of a minimalist starter theme for the two line-heights. I know I'd use that. You?
Cleaning up the typography.css so it's a little easier to modify for different line-heights.
Merging Sandbox into Thematic completely. Including changing the name of
sandbox_globalnav(). I'll be giving Scott and Andy explicit credit. I talked with Scott about it and he's fine with that (always very nice and helpful too).
I may reduce the number of default widgets. Although I fear removing the meta widget will land me emails of "how do I log-in to my blog?" I'll have to think about that.