@chinopinyin,

Thanks. We've got someone working full-time to help us add additional characters and will be taking these steps when we have a large enough backend corpus to justify opening it up as a more general study tool (as with the flashcards, etc.).

When we're dealing with random lists of characters, we can presumably hack in a couple of different study modes too. I actually think the usability of the iPhone app is a bit better interface-wise, since there is no need to wait for things to fade in and out before one can get started.

Best,

--david