I'm +0 about it, but I agree that I'd like to see the package 1st :)
I've never been a fan of mod_define, seeing mod_macro (as Jorge seems to think as well) as much more useful... check out some of my OLD Apache PPTs from the 1st ApacheCons ;) My main issue with mod_define is that there always seemed to be such potential for issues and conflicts, esp when you have rewrite rules, etc...
