To start, type in something like "Dear ..." then press Enter to begin typing the actual letter. WARNING: YOU CANNOT EDIT THE BEGINNING ONCE YOU HAVE PRESSED ENTER. Delete all where you're typing: LEFT ARROW + SPACE
Ah, yes, one more thing... When you're finished writing the letter, press up arrow to finish. And the endings of the letter are random And I'm really sorry that I couldn't get the Backspace supported!! all I had was the left arrow. Sorry :'(