Here's a spreadsheet I have created to try and tease out the principles of the application. This will help us decide on the right technology to use and what NFRs (Non-Functional Requirements) we should implement.
There are two important worksheets. The first, lists the statements from the Product Vision, and I've extracted themes from them. The second draws out principles for the architecture of the application from those themes.
I have a feeling that it's incomplete, but before I hit 40 principles I thought that was enough to share with you all.
The original is a Google doc, which it might be worthwhile opening up if we wanted to add to the list of themes or the principles.