After looking at TextPattern’s templates, I thought it might be useful to have the XML style templates in WordPress. So I did a little hacking and came up with the WordPattern Template system.
This is still experimental, and currently has a few draw backs, but it’s work ok. Let me know what you think, and If it’s worth it I’ll continue development on the project. Oh, I can’t guarantee that the current code will work correctly, so use with caution. 
Matt is the owner of this site and primary author. He also