Roambi - great tool for dashboards on the iPad & iPhone

Have a look at:
http://www.roambi.com/

This is a really cool visualisation tool for management dashboards.
It connects to several back-end systems, inclusing SAP and salesforce.
In the free version, you can use it to bring Excel-Reports on your iPad.

Here you can find more details:
http://timoelliott.com/blog/2010/04/roambi-–-beautiful-mobile-bi-for-the-ipad.html