MacProVideo, a company that specializes in providing pro training videos for Mac users, has submitted an app to the App Store that will allow you to watch the tutorials on your iPhone or iPod.
The company also updated its Mac OS X application N.E.D. 3.1. In addition to a new "Devices" area to sync videos to your iPhone, the Mac version has a few other new features. The application will remember your playback position and library state, searching has been improved and videos can now be assigned colors, ratings, and notes.
N.E.D. 3.1 can be download free from the company's Web site. N.E.D.i, the iPhone application has been submitted to the App Store and is awaiting approval.
In the meantime, there are a few videos available that will help you get prepared for the release.