I have the education software I wrote in a school, as of this morning.
Trial, free, etc...but the school folks seemed pretty excited, and seemed to agree with my assessments of what the students and teachers needed. Income stream after it's demonstrated effective.
My online math software will
(a) help the students learn better by using sane educational principles
(b) help the students' standardized test scores (including the NCLB test scores that impact funding)
(c) making teachers' jobs easier by (1) removing some work, and (2) giving some info they can't get
I have (a) and (b) written already. When (c) is working...by XMas, I'll post a link.