So I have had this thought, since the global learners started: to utilize text messaging in an educational format. however after doing some research on the web, particularly this article. I find that using texts does have its hidden flaws.
yet the idea is still out there and I found an internet application that will process the request. I have yet to test it out, but the future will yeild a blog of it's results. If you're interested its called Tatango.