CocoaMySQL was an old project on sourceforge.net which as the title implies is a Cocoa GUI client for MySQL. Being Cocoa means it looks/feels like an OSX application and also as a native app made very quick to open and interrogate data. It did have a couple of bugs so recently I was happy to find out that the CocoaMySQL had been abandoned (I knew that bit) and it's source code has been used to create a new project called Sequel Pro which has hosted its code on Google Code. You can see the CocoaMySQL influence within the client but the look has been very much updated. 0.9.3 is the current release and they are towards a 1.0 release which should include an updated SQL framework, bug fixes etc. Check out www.sequelpro.com and code.google.com/p/sequel-pro/