Sony under siege by Anonymous

How is that even legal? Didn't the U.S courts legalize jailbreaking of devices? Or was that just Apple products?

Pretty much just phones. This is assuming it's only going to be used for downloading non-pre-approved applications, it's still illegal to pirate.

The upshot is that now anyone can jailbreak or otherwise unlock any cell phone without fear of legal penalties, whether you want to install unsupported applications or switch to another cellular carrier. Cell phone companies are of course still free to make it difficult for you to do this — and your warranty will probably still be voided if you do — but at least you won’t be fined or imprisoned if you jailbreak a handset.

In addition to the jailbreaking exemption, the FCC announced a few other rules that have less sweeping applicability but are still significant:

• Professors, students and documentary filmmakers are now allowed, for “noncommercial” purposes, to break the copy protection measures on DVDs to be used in classroom or other not-for-profit environments. This doesn’t quite go so far as to grant you and me the right to copy a DVD so we can watch it in two rooms of the house, but it’s now only one step away.

• As was the topic in the GE ruling I wrote about, the FCC allows computer owners to bypass dongles (hardware devices used in conjunction with software to guarantee the correct owner is behind the keyboard) if they are no longer in operation and can’t be replaced. Dongles are rarities in consumer technology products now, but industrial users are probably thrilled about this, as many go missing and are now impossible to obtain.

• Finally, people are now free to circumvent protection measures on video games — but, strangely, only to investigate and correct security flaws in those games. (Another oddity: Other computer software is not part of this ruling, just video games.)

Source

Be aware it's not illegal for companies to act. Apparently the droid does something like void the warranty of itself during software updates if the phones is jailbroken.

I don't think sony cares about their games being modded, problem is you can't open a game to "modding" without it also opening it to piracy and nearly every reason the Anons give for doing this is something that can be used against pirating and FOR sony's case.