From Forbes, one seer's thoughts on top artificial intelligence projects includes:
Computer-assisted education, especially at the high-school level. Even for CS, few high schools offer competent curriculum, even in developed countries. Cheat-proof automated support for exams and testing, essay grading, generation of multiple-choice questions. Support for learning specific skills, such as programming (immediate feedback on simple mistakes and suggestions on how to fix them, peer grading, style analysis).
This time of year, I suspect you could raise an amazing amount of money from teachers and professors to crowdsource automated exam grading.