Following a couple of discussions of this, the consensus seems to be that having good coordinated training materials is important to a maturing product to give confidence to organisations buying into the ecosystem. The doumentation has moved along considerably in the new book and this structure seems a reasonable place to start for creating a set of training videos.
Anyone currently working on video?
Rayogram have offered to provide an intro/outro for these. We need to work out a basic format and list of videos to be produced and match up volunteers against these.