Replying to #15
I would except most people will want more than just the method that I used, which is VERY specific to my setup, given with what I had at the time.
For a decent tutorial, you'll need specifically an iPhone 3G (must be 3G, not 3GS) running 3.1.2 jailbreak using Redsn0w, NOT Blackra1n, access to Cydia repositories, Bootlace, which installs OpeniBoot and Android, and PS3 firmware 3.41, not 3.42, not 3.50, not 3.0x, not 3.1x, only 3.41.
If you have every single one of those, then I'll write one, but the odds actually having everything I have mentioned with the right firmware are 725:1.
For post-jailbreak, you need access to FTP to install a few things for some games to play, and preferably a nicely formatted FAT32 external drive that is capable of holding a game that is 40 GB (usually only about 20, but 40 covers ALL games that way)
I can't really cover anything outside of that, such as using the TI-89 calculator to jailbreak the PS3 since I don't have a TI-89...
That, and if you have 3.50, then you're pretty much screwed into buying something to downgrade with, and there's a risk to losing the BD functionality when downgrading...
EDIT: I'm gonna experiment with an iPod Touch soon, and see how that works out.