Her initial reaction was, "think of how much this is going to save the schools in budget and in time!", followed by "I wonder how much this is going to cost a district." Locally, the schools here are spending less than 10K/year on software for teachers, and that amount gets cut back a little bit each year: Teachers are frequently purchasing (or pirating) software for use in their classroom when they find software that has educational or productive merit. Your biggest hurdle will probably be getting the price points set correctly...but with that said...the wife loves it and went to show it off to a few of her friends who are still in the public educational system here who claimed it was, 'neat' and even a self-admitted technophobe mentioned that it looked better than the system that they're currently using.
Good job and great work -- this has a lot of potential to be a gamechanger for teachers.