Not too surprising, seeing as both the PS3 and Vita also run modified versions of FreeBSD.
Details about Playstation 4 OS development
We have some details about the development of the Playstation 4 OS. The Operating System is called “Orbis OS”. It is a modified version of FreeBSD 9.0. We aren’t sure if this will bring again the “Other OS” functions to Playstation 4 (remember that this option enabled Playstation 3 to install other …
Mr.H