Many readers have been sending tips to Joystiq about a new PS3 firmware update. In actuality, this is not a new update at all. Firmware 3.15 was released on December 9th and introduced the ability to play PSP Minis on the PS3. While this update was originally optional, the powers-that-be at Sony are now making it a mandatory update. "We have found out that users will not be able to acquire trophies on some game titles," we were told by a SCEE representative. "Users can avoid this problem by updating the PS3 system to firmware 3.15 and therefore we've made it a mandatory update. We apologize for any inconvenience this may have caused and appreciate for your understanding and continued support."

If you haven't updated your PS3 yet, make sure to allocate some time before attempting to jump online to install this mandatory update. You don't want to be late to your MW2 party, do you? [ProTip: Save yourself some time by downloading the update now on a USB flash drive.]