Has anyone else seen / had a go with AI Chinese? It reminds me quite a lot of the Rosetta Stone speech recognition (especially the sound prompting you to speak).
http://www.aichinese.com/
It seems like it could be a very cool addition to the online learning suite. I remember something like this being suggested on the Skritter forum, and I have complete faith in the team's ability to code something at least as good for Skritter! :-D
In the meantime, I think AI Chinese might be worth the $9 a month.