One of the newest rumours about Sony's PlayStation 3 is that Sony might be working together with Apple for some of the console's features. First it will allow users to connect iPods (and likely also other digital music players) to the PS3 and playback the music while showing some visualizations on your TV screen.
It is also said that the PS3 will offer iTunes support, allowing users to buy and download music through the PS3 and transfer it to the iPod.
Another rumour is that Apple is cooperating with Sony to develope a user interface design for the PS3 dashboard interface. More details at Macdailynews