I think a 3-D model of a Terminal Area would be helpful.
As I'm learning the Phoenix Class Bravo airspace and how to duck in and out of the crevices without contacting approach, I think think having a 3-D model would be useful and your product could be marketed in that manner, ie,.. Class Bravo flyways, flight schools, mandatory new renter checkout (if near Class B)... I could see a market for that. Then again, noone ever got into aviation to get rich!