The Blu Ray Drive.
It was the first console to allow us to watch amazing quality films and shows etc and OtherOS before it was removed.
I like that I have a jailbroken one but sometimes I wonder if it is really worth it modding is cool and all but gets boring after a while nothing like a challenge after all
But then I think nah SHOWTIME is what the jailbreak is for
Oh and that dammed Cinavia how I hate that thing.