Power View for Multidimensional Model is Finally Here
I am pretty excited about this feature with SQL 2012 SP1 Cumulative Update 4, you can create Power View reports against existing Cubes.
Refer this blog for further information: https://blogs.msdn.com/b/analysisservices/archive/2013/05/31/power-view-connectivity-for-multidimensional-models-released.aspx