On BDNTv you can watch a serie of episodes, which explains SDO and show previews of how different part are integrated in de Delphi IDE.
To point out a few:
- The Borcon 2004 keynote by Boz Elloy 'Maximizing the business value of software', a (long) talk about SDO.
- Using Starteam in Delphi 2005 A short video about using Starteam and the history view in Delphi.
- The New Delphi 2005 Caliber RM plugin A short video, introducing Caliber RM, a tool for gathering and tracing project requirements.
It is pretty sure that Delphi will fully integrate the SDO stuff in the future. I personally don't use it right now, but the integration will surely help 'playing' with it and later on using it.