new find contacts action: email list

I think it will be useful to add a new action to the find contacts interface which displays a simple comma separated email list of the selected contacts from a search. Users could then easily copy the email list and paste it into other applications. I could work on this if need be.

This will help CiviCRM integrate with other applications and modules that cannot interact with CiviCRM directly.

For Example:
1) I could generate my email list in CiviCRM and use it to sent up and RSVP with the RSVP module in Drupal.
2) Organizations that still prefer to use email clients to send out group emails could do so