I was very interested in this video on the new Emirates KIS system where they are providing pursers with tablets running Windows 8.
One of the aspects that caught my eye was the concept of inflight upgrades. In the video it looks like they are quite a way in to the flight and completing an upgrade. At what stage in the flight can you opt to upgrade, and, if the flight is halfway through, would you need half the number of miles normally required?
I assume that the tablets either download the miles balance of all passengers before departure and then update this after landing, or use inflight connectivity to stay up to date for the entire flight.