One of the things that sounded kinda neat in SQL Developer 3.1 was the Data Pump Wizards, so I thought I would have a play with them.
As you would expect, they are pretty straight forward. They can’t do everything you can do with expdp and impdp, but they are pretty cool for on-the-fly tasks.
You can use the wizard to generate data pump definitions using the PL/SQL API. It would have been a nice touch if it gave you the option to see a regular command line or parameter file definition also, since I would be more likely to put that into source control than the API definition of a job. Even so, a nice little feature.