2012-Nov-29 Microsoft announced PowerView for SSAS Multidimensional Models CTP
2012-Nov-29 Microsoft released first public CTP of PowerView for SSAS Multidimensional Models.
Microsoft introduced an interactive data exploration, visualization and presentation experience called Power View with SQL Server 2012. Power View reports are presentation-ready at all times because they are always connected to your data. Users can quickly create a variety of visualizations, from tables and matrices to bubble charts and sets of small multiple charts. Power View operates on a BI Semantic Model that resides in Analysis Services or PowerPivot workbooks.
Previously PowerView was working just with SSAS Tabular model.