Dynamic Simulaiton is scheduled for release on September 30, 2010.

You can also browse through the lessons from the following Inventor 2010 courses and watch sample lessons from each course.
Inventor 2010: Solid Modeling
Inventor 2010: Assemblies and Advanced Concepts
Inventor 2010: 2D Drafting and Customization
Inventor 2010: Sheet Metal Design
Inventor 2010: Tube and Pipe Routed Systems
Inventor 2010: Inventor Studio
Inventor 2010: Cable and Harness
Inventor 2010: Dynamic Simulation

The lessons list for this course is currently not available.