As a owner of a Playstation 4 which is on firmware 5.05 this is very exciting news even if not a lot has been revealed as of the moment, heres the news:
qwertyoruiopz said:
i rewrote the public webkit exploit that worked on 5.50 so it doesn't suck (should be 100% reliable), you can find it at http://crack.bargains/550 - old kexploit was fixed in 5.50!