Excel 2010 with Power Pivot

This video shows how Excel 2010 with Pover Pivot (and maybe OData as data source protocol) can produce amazing results.

Microsoft Excel or Open Office are well known applications widely used for analysis proupose and using them as BI front end can give some considerable advantages. An interesting Open Source alternative to Microsoft Power Pivot is Palo by Jedox, an OLAP Server that can use Excel or Open Office as front-end.