Question : WordPress Schema

I am hunting for a diagram depicting the WordPress Schema (2.1 I guess... but will take what is available).

Answer : WordPress Schema

I agree with all you have said

My guess is that if people are yelling about it, that the next version will have it addressed, but there is no way to tell when that might be.

http://wordpress.org/download/beta/ and http://wordpress.org/download/svn/ is where the sub versions (the nightly beta versions are distributed), but they are exactly that, betas, and should not be used in a production environment

You can join the testers list http://lists.automattic.com/mailman/listinfo/wp-testers

http://planet.wordpress.org/ has links to a number of the developer blogs