Is there anything in the works concerning an abstraction layer to tie specific settings to the lens that is on the camera?
Currently, I'm (nearly :-)) about to hardcode my 3 lenses into my auto_iso module so I get lens-specific min. shutter settings in av mode - but I can imagine lots of other options (Canon and ML) that I always switch based on the lens I'm using as they indicate different "shooting scenarios".
If the core would provide some framework for this, other modules might also profit from this ... but alas, as always it probably needs some time-consuming gui work next to the backend.