While Sony has been doing a good job of keeping the PS3 up-to-date with new firmware updates and features, today’s announcement of Firmware v3.21 is a backwards move by Sony. The 3.21 firmware update will remove the OtherOS feature from the older PS3 models over “security concerns,” mainly due to the recent exploit discovered by hacker George Hotz. However, this isn’t the first time Sony has removed functionality from the PS3.