MNTBIGHKER  If you run most of the time on Leopard as non-admin neither Geektool or MKconsole can show you /var/log/system.log because of lack of permissions. Somehow Console.app manages to in "Log Database Queries" but NOT directly. Is any of this registering with anyone? I am torn between thinking you should not have routine access to system.log as a regular user, but I also need to see it, so for convenience I would like to solve this.  
(Version 1.10)

EMULAUNCH  Still works great in Leopard. The console.log file has changed and is now part of the system.log. You may have to add the new path back to the preferences MkConsole. The new path is /private/var/log/system.log  
(Version 1.10)

HENRIKTEKNIK  Works perfectly and it appeals to the geeky side of my personality.

Adding to the coolness, I have hooked it up to the contextual menu, via OnMyCommand (http://www.macupdate.com/info.php/id/9283), which is just geekyness galore...!

Here are my feature requests:

- An easier way of selecting logs. Preferably, using the Console.app's behavior for changing logs (e.g. automatically display the usual places for logs. Not a biggie though.)

- This is my biggest grief with MkConsole; I would love it, if there was an option to supress those dialogs that pop up, for when there is a missing log files on the hard drive, that you have specified in the list. (Sometimes I clean my system/user logs, and some accidentally gets deleted then.)  
(Version 1.9)

ANONYMOUS  Sweet!! I've used a few utilities like this over the years but they were always too ugly, intrusive, or resource-hungry to be worth keeping. This one is close to flawless. Only complaint - it comes with the font set to Lucida Grande, which is a pretty bad choice for viewing log files. It should default to using the user's monospace font, without requiring a trip to preferences.  
(Version 1.7)

RENE SCHWAIGER  works perfect  
(Version 1.7)

ANONYMOUS  crashes on launch  
(Version 1.7)