2: If you have a PS3 slim then you are _probably_ okay
The interwebs are abuzz (okay, technically not, or at least i haven't seen anything about it on Buzz so far =P) with reports that PS3s are experiencing severe problems this morning. The timing suggests that it's related to some kind of REALLY broken leap year check, although how even getting the leap year wrong could result in the date getting set back to 1999 or 2000 (reports vary) is beyond me.
This might seem like a minor problem at first, except it turns out that once the date has gotten FUBARed you can no longer connect to PSN.
And _that_ might not seem like a huge deal except for the fact that it in turn means that pretty much any game with any kind of online support no longer works. Most importantly for those of us who don't do a lot of online gaming per se, that also includes support for PSN trophies.
_Some_ people have even reported their trophy list getting deleted entirely, though even if that's true it's not clear if it's just a "local" problem that will be fixed once a patch is issued and they can reconnect to PSN.
I'm not sure what to suggest if your PS3 is already on. When i saw the news i turned the tv on and checked the date and saw that i hadn't been affected (at least not yet anyways) and turned the system off (and even flipped off the physical switch in back, though i didn't go so far as to unplug it.) I'm going to wait until there's news of a patch before turning it back on again. That may have been the right thing to do, or maybe that will just cause the date to get screwed up when i turn it back on (if the patch part doesn't happen first.) And i'm also not sure if the equation changes if you find that your date has already gotten screwed up. I'm gonna guess though that if you find your PS3 has a fucked up date that you probably shouldn't rush to load your trophy list to see if it has been affected as well. Trying out various games to see which work and which don't might be amusing, but there's a small chance that could break other things as well i suppose.
Edit: Via 1UP News: "Sony has released a statement confirming that the problems are caused by a clock error. They hope to resolve the issue in 24 hours, but in the meantime, they've warned PS3 users not to turn on their systems. Doing so 'may result in errors in some functionality, such as recording obtained trophies, and not being able to restore certain data.'"
It still doesn't seem to be specified if "not being able to restore certain data" is temporary, or if you're screwed for all eternity if it happens to you. The fact that they don't want you to turn the thing on makes it pretty serious in my mind though.