I haven’t had any time to write up anything about how the Drop Box works since I released. However, I have just realised that I created a presentation for Microsoft about it which does go into some detail. Rather than make everyone wait even longer for me to extract into written format here is the presentation. The detail is in the notes pages so make sure that you look at those.
I don’t know if SlideShare supports notes so I’ll link directly to the PowerPoint presentation itself.