I admit as a programmer I implemented a kana quizzer in some ways like this many years ago. Always wondered why nobody made programs that quizzed fast and intelligently. This goes quite beyond my young attempts and is the most interesting/fastest Japanese language learner Ive seen.
I was fascinated to find that I retained the characters so quickly (it had been a dozen years since school) and got past the hard characters I always had trouble with. All memory based learning should be like this.
More, please.
Zinglon about StickyStudy Japanese Kana (Hiragana & Katakana)