I just heard that Tableau now has a Beta where they work with the Teradata OLAP Connector. Tableau works well with Teradata from a relational point of view but now Tableau has an offering where they work with Teradata from a dimensional point of view. This is interesting because you can now do in-database OLAP with the Teradata OLAP Connector and then you can visualize the data with Tableau. A very nice way to analyze lots of data in Teradata and then make it consumable for your users using Tableau.
Tableau now joins Excel, arcplan, and WhereScape in supporting the Teradata OLAP Connector.