Steve, yes it is. You will need to download the MySQL JDBC driver from http://dev.mysql.com/downloads/connector/j/5.1.html or http://www.mysql.com/products/connector/ and you will need to choose the JDBC option in the database wizard. Paste in the path to the JDBC driver JAR file and use the following settings.
Class name: com.mysql.jdbc.Driver
JDBC URL (example): jdbc:mysql://localhost/test?user=monty&password=greatsqldb

In the next version it is likely there will be an easier to use direct MySQL option.

Regards,

Steve

The current process is illustrated in the KnowledgeBase database connections section:

http://www.visokio.com/kb/mysql-jdbc