you get the movie viewer to work with more browsers then just IE, so the rest of the world who has enough IQ to realize that IE sucks and move on to firefox doesn't get stuck using the annoying IE tab and then having to sign in twice? More of an annoyance then anything though.

already has a movie service, whats the difference?

Netflix charges one set price and you can stream from thousands of movies and get many movies in the mail for the cost of a couple rentals off the Playstation video store. Sony reams the customer in that regard and I hope they go the route of allowing a flat rate like Netflix provides. I personally don't think Sony will allow Netflix on their consoles to compete with their Playstation Video Store. I hope they do though or change there format.