Sony leap year problem.

Today is March 1st, but PlayStation3 hardware recognized it as Feb 29th, because its internal clock had a problem.

Because of this reason, game players of play station 3 could not log-in the server; in fact, I'm not quite understanding why and how. In addition, I also could not work on PS3 this morning, because our game needed to log-in, due to Trophy system.
I was thinking that Microsoft people who developed X-Box must be laughing; indeed X-Box was fine today.

Game related programmers must learn how important Unit-Testing is...; I have never seen any game engine that support unit testing yet.