New features for Roller -- Group blogging would be great, especially in corporate/work environments where you might have a blog per project. A work around we have used, is enabling a view of posts by all users to a certain category. So, everyone would create a category for that project if they wanted to post entries to that category page (e.g. /roller/category/java). (I guess sort of like del.icio.us and flickr, viewing categories more as tags instead of a singular subject). Adding aggregate category view pages like this might be nice.