I've made some improvements to the Toffee plugin lately, as well as some user guides for getting started.

Improvements:

Better handling of large record sets.
Added toffee_list_helper plugin, so you can have a toffee-generated list anywhere in your application.
Added filters, so you can add filters for the list screen very easily.
Fieldsets in forms, you can now organise your form into separate fieldsets, simply by having something like...

@toffee_form_fieldsets = [
{:title => "Names", :form_columns => ["first_name","last_name"]},
{:title => "Other Information", :form_columns => ["date_of_birth","place_id"]}
]

...in your model definition.

I've also written some nice user guides:

Installation Guide
Using Toffee in your Rails Application
Using the Toffee List Helper