I have been using mysqlcc to manage databases since I came to know MySQL database 6 years ago. I find it so useful because I can use it to
1. manage many databases at the same time.
2. update records manually
3. update data structure manually
4. run sql command
5. monitor SQL server status and view SQL variables
6. List SQL users

However, MySQL AB now decided to stop development on mysqlcc and try to replace it with mysql-administrator and mysql-query-browser. But the new comers suck so much:
1. you need to run 2 applications now to do your usual tasks
2. To update data in mysql-query-browser, you need to click the tiny ‘edit’ switch at the bottom of the window first, then browse to the record, edit the data, click save. while in mysqlcc you just go to the record and modify the data. As soon as the data field is not focused, data is saved automatically
3. they are buggy as well

A coupe of Linux OS release already drop support for mysqlcc:
http://forums.gentoo.org/viewtopic-t-273259-highlight-mysqlcc.html

The final release of mysqlcc by MYSQL AB does not work properly with MySQL 5.0 anymore. I searched google on how to fix the bugs without too much effort and found this within a second:
http://sourceforge.net/projects/mysqlcc/

I downloade a the source file, unzip, compile and fire it up, things are beautiful again!! Need to say yes again to open source. - Ben