Yea, it's definitely real. But to be sure make sure there is a survey attached to it. Don't be expecting a ps3 jb within the next 15 years or so...
Really though there are tons of threads that clarify there will NEVER be another JB for the ps3, or at least extremely unlikely... Any CFW over 3.55 is for people already using CFW... The only way to jailbreak a ps3 is to downgrade using an e3 flasher or other similar nor/nand programmers.
Yes they are alot of jailbrake .infact go to youtube they are millions of them usb jailbrake get one i jailbrake my super slim ps3 with one.so a phat or slim ps3 will work just fine.
Don't listen to what anyone else said, except Stunz :p it's not possible to jailbreak after 3.55. You must downgrade and you can't do it on super slims.