With WordPress 2.7 in the bag, the development team is looking ahead to what features should go into version 2.8. To that end, they have announced a survey to find out what features the community thinks is most important. It presents a list of several possible features (theme browser/installer, performance improvements, sortable columns in edit lists, OpenID integration, etc.) and asks how important you think each one is. Then it asks you to provide your top three priorities.
I think surveys like this are a great way for the WordPress development team to fine-tune the community feedback that they get from the WordPress Ideas Forum. It only takes a couple of minutes to fill out the form. If you want to help drive the direction of the next version of WordPress, go take the survey now.