We need answers from two context:

1. What does the theoretical spec have to say?
2. What are the pragmatic interoperability issues with today's existing clients?

iMIP Questions

• We would like event invitations that can be modified by any attendee and (re)broadcasted to all attendees and the organizer of the event.
• Is this possible under iMip?
• Is the Organizer the only person that can modify and update the event?
• Are there work-arounds to make this possible and yet allow interoperability with existing clients?

• What does iMIP have to say about forwarded invitations?
• How is forwarded an iMIP invitation different from adding attendees to the same invitation?

• Can an attendee have two different email addresses? and thus reply from a different email address from the one specified by the organizer?

• MUST support for iMip mean we support S/MIME? (as my reading of the spec indicates?)

• Does iMIP support VJOURNAL in addition to VEVENT and VTASK?

CalDAV^? interoperability"> iMIP and CalDAV interoperability

• If I were to send an email invitation to a mix set of attendees, some have accounts on my CalDAV server, other don't, what would the workflows look like?
• Does CalDAV reconcile an email address and a user's CalDAV account?
  • If so, does it deal with users each with multiple email addresses?