I apologize in advance if this has already been requested.
iFly updates Flight Plan data (indirectly) in that Time to Go and Distance are constantly updating in flight. But how about the total fuel burn expected?
I thought that the Totals in the Flight Plan page might update in real time once flying. They don't.
Perhaps they could?
Or perhaps another Instrument called "Fuel" that updates your expected total fuel burn for a flight? Would help in headwinds.
(I suppose, if iFly wanted to get fancy, the user could enter the starting amount of fuel on the Instrument, and it could be an "Estimated fuel remaining" Instrument instead. Could turn red when you're down to some user settable minimum.)