This layout probably won't appear in the retail version but we do get to hear some sound effects and transitions that could appear in the finished product. He does say that this is a very early build and that this was one of the first test kits to come out.
Some interesting tidbits:
- The PS4 can recover from a game crash without locking up.
- Games are considered applications and can apparently run alongside other applications (multi-tasking).
- If you're connected to the internet, application information is automatically updated in the dynamic menu.
- The built-in DVR can automatically start up when you start a game? Or maybe when you turn it on it stays on? Maybe it was being used for this livestream? (in which case this is pretty damn good quality).
Being a test kit the displayed HDD capacity is probably not final.