Tableau 10 not added new charts. We can do some workaround in tableau and create new charts.
Please tel us what type of chart you want in tableau.
We are not looking for any specific charts, Just we wanted to know that any new chart are introduced in Tableau 10.
This is such a great question (Kudos Ashok!) I would like to know how to create a custom chart, for example a gauge or tach meter to illustrate a specific attribute. Is this kind of thing possible, it would definitely prove useful.