A bit more info on the PS4's interface
Given the rate in which I expect news to come out, this post will probably be irrelevant in the next couple of days, but given that the PS4's interface has been a point of concern for some people, I thought this was worth sharing while it's still new.
Kotaku was given a brief overview of the PS4's interface, and while it's perhaps not as slick the Xbox One's in some ways, it definitely sounds like a huge improvement over the PS3. Here are some of my favorites:
You can have two groups of PSN friends: regular friends and "true" friends. To be true friends, or BFFs, you both have to agree. Regular friends will just show up on your lists and games by their handles, but the machine will display true friends' real names, so you don't have to keep remembering that SexCowboy77 is actually Kirk Hamilton.
Multitasking is super-easy. If you double-tap the PlayStation button on the DualShock 4, you'll swap between your last two applications. So if you play a game, then pause to look at your friends list, it's easy to switch back to where you left off. No saving required. This is the future!
As you download a game, you can start playing it almost immediately. It'll take a minute or two for the system to install enough data for you to start a game, but you won't have to wait for the software to download completely—which is good, because these games are big. Different games will allow you to prioritize based on how you want to play while they download—Call of Duty: Ghosts, for example, will let you choose whether you want to start playing single- or multi-player, and then you'll download the bits accordingly.
All of this is from: Nine Cool Facts about the PS4's Interface