We've heard a lot of talk about how the PlayStation 4 interface would work, but we haven't really seen it in action. Sony revealed a bit about how you can stay connected to friends through sharing and messaging in this new video, giving us a better idea of what to expect from the PS4 this holiday.

The speed of the UI is what's caught our eye, as the PlayStation 3 XMB is probably the slowest, clunkiest interface on consoles right now. With the PS4 though, you can see how the user is able to jump from his game of Knack, right to a shared video, and right back to the game, with relative ease. Sure this is a demo video, but even if the real finished product is half as fast as it's show to be here, it'll still be blazing speeds compared to the PS3.

Additionally, you can see when the player attempts to get Killzone: Shadow Fall digitally, he's given the option of which portion of the game he wants to buy first--multiplayer or single-player. That's a nice tweak for those of us who want to get to the action with friends right away, particularly since you'll be able to play games before they're completely downloaded.

The chat functions are nice, especially when factoring in the mobile connectivity, but that's definitely an Xperia phone, so that might not be a feature available across all mobile devices. That said, the PS4 interface is shaping up quite nicely, and shows a massive leap forward from where Sony is with the PS3 right now.