The latter in particular is giving them some trouble, but they report it’ll be months, not years, before it works.
Not completely, mind you: The team has made more than 7,000 modifications to the Linux kernel, and they’re still figuring out the HDMI audio and 3D graphics acceleration. The PS4, officially, has no such functionality, but it’s close enough to a standard PC that Fail0verflow is engineering a custom Linux kernel for it. Before they got all humorless about it, the PS3 could run Linux, both as a bid to make it a PC and as a way to create little development kits for gamers to experiment with. But will Sony tolerate Valve on their turf? Fail0verflow, the hacking collective that broke the PS3’s encryption and champions homebrew games, has just announced they’ve got Linux working on a PS4, and that SteamOS should “just work” once they resolve the driver issues. Your PS4 is about to, unofficially, see many, many more video games available to play on it.