What Skills Does an Oracle BI Developer Need in 2009?

I recently read this article from Rittman Mead Blog .He has written clearly about the booming skillset  needed for a person to become a full fledged Oracle BI developer.
Check out more @
http://www.rittmanmead.com/2009/03/15/what-skills-does-an-oracle-bi-developer-need-in-2009