This exploits are so called "Buffer Overflow" attacks.
But the PS3 have a software police running (The Hypervisior) and such Buffer Overflow exploits doesnt work.If the Hypervisior detects such a attack it than executes the System Call "lv1_panic" (the last entry from syscalls) and simply turn off the console.Even with no shut down if needed.
You can guess that this will kill the viruse,trojan,worm,hack,exploit..."Buffer Overflow"
So in this case Wii hacking is more then...Childs Play and PS3 Hacking more like for the Grande Masters of Console Scene.
No offence meant to all coders and devers from the Wii scene.