Christoph Ruepprich recently gave a presentation to the Dallas Oracle Users Group on the Datapump API. If you'd like to see the slides or look at his demo scripts, check out his blog.
And...if you like his presentation, you ought to check out his dance moves at Hotsos Symposium next year:
Christoph has signed up to present this topic again at the Hotsos SIG on Sunday.
Love those pants, Christoph!