In the past we have already informed you a little bit about the new features of the upcoming 2.9 version of WordPress - the development does not stop and the next version has many minor changes. Improvements in security, administration.
WordPress 2.9 will have the possibility to update all your Plugins, which have an update available, in one step.
That makes maintenance work with customer's and on your own blog more simple and faster. As a little insight, here is a screenshot of the current beta.