I'll be honest, I'm not very fond of touchscreens, but it's true that it could be interesting. Although I like the use of the keyboard itself! (also it would allow me to "spell" stuff with letters)
And thanks! I consider this entry a prototype to a project of mine. :) I've had nice feedback on it and I could easily had more depth to it in terms of story (since I had no time to had anything there except the intro)