Microsoft has just released the latest CTP for their SQL Server 2008 suite of products. Grab your copy here:
This CTP promises to have a lot more features implemented, including a more complete version of the Reporting Services standalone designer tool. The SSRS team has overhauled the UI and included the Office 2007's ribbon interface, making this a very sexy UI for end-users who wish to create reports in a ad-hoc fashion.
I'll be testing this CTP, and will try to post some of the new features on this blog as soon as I can, so stay "tuned".