Back in the day, prior to Leopard, there was a console.log file, which contains errors and messages for the current user's account. When Leopard came around, this file was removed, and the system-wide logging system (ASL) replaced it. Those messages are still recorded, but when you view logs in Console, you can't see them on their own.
I was doing some research today for an article, and wondered where that file went, and how one could view it, since the full system.log contains so many entries that it can be hard to wade through. I found a forum thread from 2008 which explains that you can see what used to be in console.log by running syslog -C in Terminal. You can also run this command to save these entries in a file, then view them in vim: syslog -C > /tmp/console.log; view /tmp/console.log. Or, if you simply want to save this information in a text file, you can do this: syslog -C > /Desktop/console.log.
While this isn't new, it's good to know, if you're looking through logs in Console in search of information.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20120528025400312