Drupal 5 is coming soon, probably in a month. Version 5 has been freezed adding of new features a month back. Hopefully this would provide a lot of new features, with more AJAX and easy of use. I hope it has a better system for blocking out comment spam. I would like to have the ability of creating new tags right when you are writing the post like in wordpress.
Check out www.drupaldemo.org for a running installation of this. You can log in with your drupal username and explore the thing.
Sadly these guys dont provide a package for release candidates instead you would have to use cvs for retrieving the source files. I hope this is bug free. When i first started using version 4.6 some of the modules were really buggy.