1) This can be accomplished with Productstream. It depends on how you are
modeling them (assembly, derrived part, manually linked...)
2) There is a "where used" tab in Productstream... This should give you what
you need
3) This is not possible today. Inventor's iParts factories are still driven
from Inventor.
www.autodesk.com/productstream
--
Thanks,
Brian Roepke
Product Manager, MSD
Autodesk Data Management