Add practice mode which turns a whole text into a big cloze test
This could be a more interesting alternative to using the flashcard page, allowing you to go back to quickly review all words in a text after reading it. It may even prove useful as a pre-reading exercise on new texts to warm up before reading them thoroughly.
I've used www.quia.com for years and unfortunately some of their activities, including the cloze activities require Flash. What about an amalgamation with Kahoot.it's software?