Follow this link to see a demonstration of SQL Server Project "Crescent". To quote "a new immersive ad-hoc visualization tool that is part of SQL Server Code Name "Denali" Reporting Services. Project "Crescent" is designed with end users in mind to quickly, easily, and visually explore their data and answer ad-hoc questions in just a few clicks."
It sounds like exciting stuff and certainly plugs some gaps in the Microsoft stack.
- Paul Steynberg