We do this in GateGuru already. I think you are underestimating the scale needed to produce statistically significant models across airports (or even within one

We do this in GateGuru already. I think you are underestimating the scale needed to produce statistically significant models across airports (or even within one across checkpoints). MyTSA even has trouble with the crowd sourcing and they have TSA brand. It's a classic chicken and egg problem: nobody wants to use the app until its meaningful and it's not meaningful until you have huge numbers using the app. Our approach in GateGuru is to bundle the security wait time functionality with other, highly engaging and free services (such as flight tracking, itinerary management, and our amenity database) in a completely FREE app and scale our way into it. We are deep into it and its an ongoing part of our strategy, but its not clear to me how you could generalize this and build a business around it without an amazing solution to this fundamental problem.