The document summarizes research on using mobile phones to supplement English language education in Japan. It discusses: 1) The lack of English learning time in Japanese schools compared to other countries. Mobile phones could enable additional outside of class learning. 2) A survey found 99% of students own mobile phones and prefer using email over browsing on their phones. 3) The AMELSS system was designed to deliver English learning content via automatic emails with quizzes at different stages of the learning cycle. 4) Experiments will test the most effective email frequency and usefulness of customized extended learning content.