Power View, previously known by the codename Project Crescent, is a powerful reporting tool, capable of some impressive data visualizations.
As it is only available as a Reporting Services plug-in for SharePoint Server 2010 Enterprise Edition, we have provided the following guidance. This clears up what was a point of great confusion for us prior to writing, and takes you through the three report authoring tools at your disposal when deploying SSRS. Hopefully, this will clarify your thinking as much as it did ours, when it comes to selecting the right tool for the job:
Power View integrates with SharePoint Server 2010 Enterprise Edition. It is a thin client Silverlight plug-in, aimed squarely at non-technical end-users. It permits professional-looking ad-hoc reports, and powerful data visualizations to be easily created from either PowerPivot workbooks or Analysis Services Tabular models, with a degree of control from the report designer.