PlayStation Network Locked Up On Several PS3 Units

Several subscribers on the PlayStation Network have reported that the service is down.  Not only is the service reporting an 8001050F error message, but it's also preventing Trophy registration for several titles, forcing them to quit.  These include several PSN games, as well as a few PlayStation 3 titles, including Heavy Rain.  Also, if you tried to log in, you might notice that your calendar has moved inexplicably to a December 31st date.

There is good news, however.  Sony is reportedly aware of the problem, and had this to say...

"We’re aware that many of you are having problems connecting to PSN, and yes, we’re looking into it. Stay tuned for updates.”

We'll keep you informed on the status of the PlayStation Network throughout the evening.

UPDATE: It looks like this issue is affecting older "big" PlayStation 3 models at this point, and their internal clocks.  According to several reports, "slim" PS3 models are working fine.  “We’re aware that many of you are having difficulty connecting to the PlayStation Network this evening. Those of you with 'slim' PS3s (the 120/250 GB models) appear to be unaffected,” wrote SCEA Social Media Manager Jeff Rubenstein in the PlayStation Blog. “Know that we have narrowed down the issue and have engineers working to restore service even as you read this. We apologize for any inconvenience this may cause you, and genuinely appreciate your patience while we work to resolve this.”

UPDATE 2: Sony has advised that if you have an older model PS3, do not use it at this time until the problem has been remedied, which should be later this evening.  So, go play Xbox 360 or something...