Integration of panels with taxonomy_menu - sort of

For a current project, I am using panel pages, integrated with menus created from a taxonomy hierarchy. For this, I have done a mashup module of taxonomy_menu, taxonomy_assoc - which in my case associates a panel page with a taxononomy term - and panel pages. The code for the resulting module is attached to the slides of my presentation at FrOSCon in Sankt Augustin today.

I will make a proper contributed module from it but am quite keen to learn what you thing about this approach to build a hierarchical site navigation combined with panel pages.