3.2 Calendar option for event guests?

[Christophe]

I am not talking about forum guests but rsvp guests.

I guess the simplest way would be to make people post in the event that they would bring guests...what do you guys think?

John doe is a member he wants to rsvp for an event and invite two of his friends as guests who are not forums members.
How would you go about adding +guests counter next to the rsvp when someone is rsvp'ed?
I guess you would first need to rsvp then you would see a "add guests" button or link.

I would like to know if you guys thought about adding that functionality and if not what would be the best method to add this functionality?