Multiple Fieldgroups like multiple fields

The feature request I have for CCK pertains to the fieldgroup module which is bundled with CCK. Would it be possible to add the functionality for multiple fieldgroups? For example:

1. User adds x fields of different types to a fieldgroup.
2. User has option to make fieldgroup 'multiple' (as they can do currently with the fields themselves)
3. On content authoring form user can add multiple sets of the same group of fields

There is a forum topic related to this here: http://drupal.org/node/232184

I have chosen drupal 7 version as it is the version most 'in the future', but please do alter this if its incorrect.

Many thanks,