Excel Services and PowerPivot for BI

I am really impressed with the enhancements in Excel services and the addition of PowerPivot to SharePoint 2010.  I'm going to have to write some sort of top 10 article on the two of them. Here is an example of a dashboard I wrote for the Shceduling Department and the Production supervisors published in Excel Services. The data is driven via T-SQL queries. The datasource can even be refreshed. I'm just amazed.