A New Review
I've thought up a new kind of review called "The Wordmill", like a treadmill of words. You answer a question, and try to get as many right before you get three wrong. Each correct question gives one skill point, and then you can do like 100 questions without having to go back and press the practice button over and over.
This idea sounds great, I think a gaming aspect is good for learning as we would try to beat our previous scores. I'm not a massive fan of the timed feature as i'm not the quickest typist, having said that, my typing skills have improved lately as well as my Spanish. Duolingo is fantastic - I'm hooked!