A new delivery channel for movies wherein digital content is beamed via satellite to digital projectors in the movie-house.
Also the sound seems kind of choppy recently in the new mega-theatres (like clipped cell phone conversations). Not sure if it is because of Digital but can't think of any other reason in a brand new high profile movie like the recent MatrixRevolutions where I saw it and noticed this effect, not for the first time and not only in that particular cinema.