I am torn on this technology, and can see where it would get very controversial, even in our somewhat small community. For long range shooting for fun, absolutely!! It could also be a wonderful training tool for learning to read wind. But in spite of possibly upsetting some people, I feel this is important to bring up on this amazing technology.
But as far as hunting is concerned, with everything available to us, the last part of the equation that relies mostly 100% on human skill, and requires discipline and practice, is judging wind. Yes, you must have an accurate rifle/ammunition combo, a reliable rangefinder, some sort of ballistic callibration, a good trigger squeeze and proper optics, which a couple of these require some skill, but you must be able to get a decent wind call to make that first round hit.
If something like this came out to the general public for use in hunting, it would take the need for skill, discipline, and practice away from the long range community. One of the biggest reasons we do this, at least in my opinion, is the challenge and the feeling of accomplishment when you have the ability to make that hit at 1000 yards on your first round with a 9 mph crosswind, that you called and timed your shot for.
Anyone with the money to buy this stuff and pay someone to do load development and trajectory validation could do it, those guys that shoot their rifle once a year right before deer season to make sure they can hit a milk jug sized target at 100 yards would now be capable of what takes most people years of practice. The need for skill would be all but gone. All that would be needed would be to put in your scope what an app tells you and shoot.
And as far as ethics for hunting, this goes two ways depending on how you look at it. In one way it's good, as bad wind calls would pretty much not exist with the use of this tool, thus less wounded animals. On the other hand, is the argument on fair chase, which we are already looked down upon by some people, even other hunters.
Regardless of the possible controversial aspects, this is amazing technology, and could definitely be a game changer. And even with my thoughts on it for hunting, I still think it could be an amazing tool for shooting steel and learning winds, like having the answer key for a test you are studying for. I'm just unsure on my opinion of such a tool for big game hunting. Prarie dogs and coyotes would sure be in trouble though....