Nested Sortables

Nested Sortables


The ui-sortable example at the link below is excellent:
http://ui.jquery.com/demos/sortable#placeholder
However, there doesn't seem to be an option to make a sortable nested.
A few plugins seem to exist, the best I've found is this:
http://bitsinashortbit.wordpress.com/2007/07/22/nested-sortable-jquery-plugin/
However, would it not make sense to make a nested: true; option
available in the main jQuiery UI code?
cheers,
DAZ