As unexpected untill last week, our project would perhaps interest some users at the other side of Atlantic ocean.
Units used on Rafale are for time being in liters and tons. We will try for first delivery to implement functionnality to choose between french or US units (US gallons and lbs, need to be confirmed please).
We will do that, but not sure for next week. It's not technically very hard, but many lines in differents xml have to be modified and displays fixed, and lot of other work remains.
Altimeter setting will remains independant, for french pilots who fly over US, or US pilots fly over Europe.