If anyone's interested, I updated my master/config rewrite to latest Dovecot v1.1 tree and added it to hg: http://hg.dovecot.org/dovecot-master-rewrite/

It probably doesn't work, but with the exception of plugins it compiles anyway. :)

I'm thinking that maybe after v1.1.0 I could continue with the rewrite and create v2.0 after all instead of v1.2. Just look at how much cleaner deliver.c is :) http://hg.dovecot.org/dovecot-master-rewrite/file/59ebbfcf21cb/src/deliver/d... vs http://hg.dovecot.org/dovecot/file/eb4f1fbeecda/src/deliver/deliver.c

Another thing with v2.0 I was thinking about was to change index file formats to be more efficient.