No you might void a warranty but not for the replacement or upgrade of the HDD
The reason behind the jailbreak is sometimes theft of software (PS3 Games) and that is illegal.
I think what you are referring to is illegal.
No. The only devices allowing for modification of the console have been branded illegal. Modifying propriatary software on any non-open sourced product is illegal and the parent is protected by the digital millennium and copyright act.
You can't it's illegal.
PS3 games are manufactured on BluRay discs. Piracy is illegal. Get a job.
You need to modify your console which is illegal.
No, they are not. They are illegal by the way. The PS3's security is high, but somebody are working on it using geohotz exploit.
See the related link for more information on open a PS3 and many other things that can be done to one
Yes
Yes, hacking any game on PS3 could damage your PS3. Not only physically, but using hacks can get you banned from PSN. Also hacking your PS3 is illegal and can get you in trouble with Sony.
No it just is not possible. PS2 does not read the discs and can not run the games even if the software was not designed for the PS3
is it illegal in california for an adult to drink alcohol in an open garage?