Hi …
i’ve been using lazydocs for quite some time now and it’s a real
pleasure working with them…
you should definately use them…
http://ferret.davebalmain.com/api/classes/Ferret/Index/LazyDoc.html
my implementation:
http://blog.omdb-beta.org/2006/12/12/lazydocs-and-database-objects
as far as i know, Jens wanted to implement them in acts_as_ferret as
well 
Ben