Japanese hiragana keyboard for Android. It' shaped like a circle and you write by swiping towards choices. It's fast but it's not a complete Japanese keyboard. More of a proof of concept. Also a good example code if you want to make your own unconventional keyboard for Android.
It helps students practice oral English and increase score in Toefl
...Students can practice their oral English by answering the questions in the library repeatedly. Students can also rectify any mistakes by recording himself, and play it back.
This is a vocabulary trainer which organizes the vocables in trays. New vocables are put in tray 0 and each time the user gets it right, it is put in the next tray. But if he gets it wrong, it is put back into tray 0.