I have a new project that I enjoy and I think my students will enjoy, but I have trouble fitting into any known theory of language learning.
A few things make me feel like this is something other than a pure hobby. I know some kinds of students, mostly my former students in Japan who loved manipulation of abstract systems and perfunctory tokens, who will enjoy playing with it, and this provides me some comfort. Many ESL departments at universities and community colleges in California also seem to spend money on software packages which are similarly grammar-McNugget-oriented and only slightly less contrived in their examples, and they may show an interest in something like this if I can make it a bit more tailored to the grammar books I know they use (for instance, by putting all the passives in one place and the hypotheticals right after the basic if clauses). For the moment though, it is a showy jalopy that I spend a lot of time working on but can barely get me to the supermarket.