While I haven't used MM in an actual mission, yet, I have worked many and I'm thinking of the various usage scenarios.
A number of popular mission locations in our county are in areas of zero cell availability. The county does have sat comm resources available, but they are usually present in the 2nd or 3rd operational period (if at all). This means that our data connection to the net is severely compromised.
The normal workflow is for check-in to be located in a place that is easily accessible to responding personnel, and planning to be co-located with computer and other resources. Planning periodically receives the resource info and makes assignments accordingly. If we don't have a good net connection, then what is the easiest way to get info from the check-in computer to the planning computer? How about a computer used at the radio station. If they are entering info live, then it would be useful to planning as well.
Probably the easiest way is with a member export from the check-in box and member import to the planning computer, but I don't know how that would play with the check-in info. Also, I don't remember being able to set a guest account flag or set other attributes on the import.
My supposition is that sneaker net is still the easiest. There could be a centrally designated computer that would eventually receive all of the info. The satellite computers (check-in, radio log, etc) could then sync their mission info with a flash drive, and that could then be synced with the planning computer so that all information is available to that box.
A fancier solution to this would be to initiate a server process on the planning computer, and have all the syncing via a local wireless network that would allow all of the satellite computers to upload their data to the on-site server. This would allow all resources available to everybody and it could later be uploaded when there was a net connection.
What do you think of a "field server" model?