Oracle has launched a new, interactive, online, and FREE ADF Mobile course: Developing Applications with ADF Mobile.
From the announcement:
"The course blends media-rich content to bring you interviews with the experts, engaging interactions, and inviting demos and graphics that keep you interested as you learn all about ADF! Developing Applications with ADF Mobile will take you straight through from the basics of ADF Mobile, to developing mobile applications, accessing web services, and integrating with mobile device functionality. A future release of the course will include mobile security topics as well."