I think this is the plugin kakarotoks was refering too, it's from xorloser's blog.
Edit: Also, if you get asked the same questions every day, hundreds of times, and mostly about CFW, PSN and piracy and you're fine with it, then you can bitch about his P.S.
Edit: I forgot about 3.56 and 3.60 downgrading, devs get asked that a lot too.
STOP! Before you ask questions... READ the first post! RTFFP = Read The F*cking First Post
Yes, A 3.55 "jb" (cfw) is available, no >3.55 "jb" or cfw yet.
Yes, A 3.55 downgrade is available. But not to lower than stock firmware! (What it came with)
No >3.55 downgrade is out there yet.