UNA is still a work in progress. Many little details are missing. There was an idea and the project was rushed. It's not the same solid quality as Dolphin. UNA is the second child and you know how people get with the second child... :-)
If we can make a community similar to Wordpress, where there is hundreds of free quality modules, great documentation, tips & tricks, etc., then the progress of Una would go much faster. UnOfficial open source development.