I was making my way to MSDN to check out the very cool Expression Web (now available to all MSDN Premium subscribers), and noticed some interesting new downloads available:
 

A quick internet search turns up the following Microsoft Press Release:

Microsoft Agrees to Acquire ProClarity, Enhancing Business Intelligence Offering
Leader in advanced analytics adds to Microsoft’s comprehensive BI capabilities

Here's a quick teaser from the ProClarity website (interestingly enough running classic asp):

ProClarity, a Microsoft Subsidiary, puts your business intelligence to work - moving you quickly beyond a barrage of numbers into "why is this happening?" and "how can we improve it?" ProClarity is designed to expand the capabilities of Microsoft business intelligence, making information simpler to access, easier to use and clearer to understand.