I haven't put in the time to become fluent in reading Dotsies (Dotsie?) yet, but find it fascinating. I can imagine a multitouch keyboard made for Dotsies, that

I haven't put in the time to become fluent in reading Dotsies (Dotsie?) yet, but find it fascinating. I can imagine a multitouch keyboard made for Dotsies, that could be quite a bit more efficient once learned. Has any research been done on optimizing graphemes and common words for multitouch typing?