The Persuit of PaperKing - Day 2 - The Plan

Ok so we need a plan before we can get too serious about building yet.  This is going to be the informal specifications list / guide / document.
We're intending on building this in a pretty agile manner due to time constraints and the needed exploration of various technologies.  It's expected that we will need to make changes to the specifications as the project goes, hopefully no removals, but possible modifications or additions.
The roller coaster simulator will do the following:

1. Drag and drop world builder: The application should allow for the various pieces of track to be dropped on the world for quick assembly.
2. Realistic physics engine: The application should use a good physics model to be realisitic and predictable.
3. Runnable from within an LMS (Learning Management System):  The application should be deployable from within an LMS to provide the best availability for students, this does not mean that it can only be launchable from within an LMS.
4. Launchable restore points:  The application should allow it to have a "pre-built" model in it already so that it can allow for completion of started elements.
5. Spot checkable physics:  During the build process you should be able to select a segment of track and see what the current speed is and the change of it.

Technical specifications (subject and likely to change):

• Use of the Papervision3D framework for visual display.
• Use of the WOW engine for physics
• Built for the Flash 9 Player.
• Flex 3 development environment.