Way back in February, a man by the name of Ben Randall demoed an amazing voice control app called "utter!" that he had started developing. The initial video (a whopping 22 minutes long) demonstrated some amazing capabilities - take a look for yourself:

But that was over 9 months ago, and aside from the initial release of the (very limited) alpha, we haven't heard much about the app, though Mr. Randall has kept interested parties updated via his very active XDA thread.