They didn't hack our code to add displays, so how would they have found a way.
And don't get me wrong, we already have a huge navigation database with airways, airspaces, etc. we just have not gathered that data to be loaded in aerofly, but that is not really hard, just takes time away from other projects, you know the deal.
We will see if we can help JustFlight to make an interactive and working navigation device. We can't promise you anything at this time but I'll at least look into it, see if it is feasible.
Go for it! JF need to release an aircraft which has distinctive and significant improvements on everything else that comes standard with FS2. That way everyone will want to buy it and they'll have a success on their hands which we all want.