Back in September, after the public fallout of the PlayStation Network breach, Sony quietly updated its PSN terms-of-service to protect itself from class-action lawsuits. Users who signed the new TOS had to stick to individual arbitration instead of fighting with the masses. And users had to sign the new TOS to sign onto PSN, though Sony did allow for a more time-consuming opt-out via postal mail.
Well, ironically, a Northern Californian man has filed a class-lawsuit against the changes. On behalf of all those who purchased a PS3 prior to the change, he alleges that Sony has engaged in unfair business practices by taking away a service users expected to have when they bought the console. The suit further attacks Sony for putting the relevant changes deep within a form viewable only on the PS3, whereas previous user agreements were available online.
Sony did not respond to a request for comment from GameSpot. One assumes they're hoping it'll all go away if they close their eyes hard enough.

