This method of writing (and reading) could be used in small-screen devices, but also in environments that command short attention span, such as billboards.
"If you were to read this article on a mobile phone using an RSVP (rapid serial visual presentation) reader, your display would show the first word for a fraction of a second. Then the next word would flash on the screen, followed by the next one, and so on. You can try reading text RSVP-style by going to the RSVP demo on our website. Adjust the speed by moving the slider bar to the left or right." --Mobile Magazine