According to Amazon's Camera description page.
When combined with the DualShock 4 Wireless Controller's light bar, the evolutionary 3D depth-sensing technology in the PlayStation Camera allows it to precisely track a player's position in the room. From navigational voice commands to facial recognition, the PlayStation Camera adds incredible innovation to your gaming.
Kelsey writes: "Samsung is one of the best in the game and we've just spotted a gaming monitor deal out of this world with the Samsung G9 Odyssey at Amazon."
Telling of Nartide, a young girl who ignores her mother's advice, comes The Prisoner of the Night on Xbox, PlayStation and Nintendo Switch .
Jack writes: "Our guide to the best CPU for Hades 2 considers the best currently available from AMD and Intel. Plus, you may even want to consider an APU."
Although this is all likely to be true, until Sony confirms such functionality, you can't assume the PS4 will support such features
But I like navigating with my legs.
*looks at Kinect*
It would be kind of funny if this is true as a whole press conference was based around this feature and Sony have stayed silent on the matter as if its only vaguely important (it really is imo). I think the most intuitive way to browse the menus and UI could end up being the touch pad. If not though, analog sticks have never failed me.
Any new features is a bonus for the PS4. This feature is not one I would use myself but it could be cool for Netflix or something to navigate the browse page.