With the December update to SharePoint 2010, you can now view your existing BI solutions in your SharePoint on your iPad devices that use the iOS 5 Safari browser.
Users can view PerformancePoint scorecards, analytic charts and grids, Excel Services reports, and SQL Server Reporting Services reports by using the Safari browser on iPad. However, not all kinds of reports can be viewed on iPad. For example, users will be unable to view Visio Services reports or PerformancePoint strategy maps because of client-side requirements that iPad devices cannot support.
For more detailed information see the following Technet article – http://technet.microsoft.com/en-au/library/hh697482.aspx#part2