I really like what you have done with Graffitti thus far - well done to the deveopment team!
I would be interested to know your vision for Graffitti and what features you see as important to add in the short and medium terms.
I like the following ideas which have mainly been contributed by other posters:
1. Being able to configure widgets per category. Perhaps there could be a default site wide configuration (the current state of affairs) that could be overridden at the category level?
2. A mechanism for hierarchical navigation - related to this the ability to insert breadcrumbs. I agree with another poster who suggested that these features are important to better distinguish Graffitti as a CMS rather than just a blogging platform.
3. Validation for custom fields - to allow for mandatory entry and type/range checking etc.
4. I would also like the ability to link posts to multiple categories - but I think that might be asking too much?
Once again - great job. Am following Graffitti with considerable interest.