Since it's being moved offline (language is unclear as to what is happening) you might be interested in the (for-pay) skritter.com. It (if I understand Lingt co

Since it's being moved offline (language is unclear as to what is happening) you might be interested in the (for-pay) skritter.com. It (if I understand Lingt correctly) has the same design to exploit the spacing effect (http://en.wikipedia.org/wiki/Spacing_effect http://en.wikipedia.org/wiki/Spacing_effect). Has anyone else noticed a lot of startups popping up in the "adaptive flashcard learning" space lately?