Sony's upcoming Play Station 4 (PS4) is said to be running FreeBSD 9 underneath
PlayStation 4 - Wikipedia
Il sistema operativo della Playstation 4 è Unix-Like | GrecTech
NMAP PS4 Research Port TCP / UDP and CVE (FreeBSD) for Devs | PSXHAX - PSXHACKS
PlayStation 4 User Interface - PlayStation 4 Wiki Guide - IGN
PS4 open software licences (FreeBSD confirmed) | NeoGAF
FreeBSD Compatibility Layers Weakness Analysis by PS4 Dev CTurt | PSXHAX - PSXHACKS
PS4 File Browser released - CTurt updates his PS4 Playground tools - Wololo.net
Alexandro Sanchez on Twitter: "Several real-time VM introspection tools for guest FreeBSD/Orbis kernels recently arrived in Orbital. Now you can run/debug the PS4 software stack from kernel until /safemode.elf (userland!). Big thanks
Open source PS4 Remote Play client 'Chiaki' major release up with VA-API support | GamingOnLinux
Which OS does PS4 use? - Quora
More FreeBSD Vulnerabilities reported, most likely impact PS4 and PS5 - Wololo.net
Sony: a governare la PlayStation 4 c'è un FreeBSD - Zeus News
New freeBSD Bug May Lead to PS4 9.50 Jailbreak | PS4 Jailbreak News - YouTube
Cuál es el sistema operativo de la PS4? FreeBSD
E' ufficiale PlayStation 4 è basata su FreeBSD - Linux Freedom
Por que a Sony não adotou Linux no PS4? - YouTube
FreeBSD vulnerability could potentially impact PS5, PS4 (but don't get your hopes too high on this one...) - Wololo.net
PS4 usa OS Unix, mais particularmente o FreeBSD 9.0 - PCManias.com