According to the complaint (via IGN) which was changed last month - Sony actually disabled Other OS to save money.
The feature, which allowed users to install other operating systems on their console, was removed via a firmware update in April 2010. Sony issued an apology for the controversial decision at the time, but was quickly sued by unhappy PS3 owners.
The amended class action complaint says Sony’s insistence that the feature was disabled due to “security concerns” is a “fabrication”.
It reads: “In reality, SCEI and SCEA removed this feature because it was expensive to maintain (as they previously admitted when the feature was removed from the slim models – but which they conveniently removed from SCEA’s website).
“…When the Other OS is in use, the API and other hardware features are blocked, including the graphics chip in the PS3, which makes it impossible to run a pirated game on the Other OS. As of January 2011, Sony had yet to identify a single instance in which someone used the Other OS to pirate protected content.”