On the IBM developerWorks website is a new article discussing the different editions of DB2 10.5. It is titled "DB2 editions: Which distributed edition of DB2 10.5 is right for you?". It gives an overview of what editions are available, some of the top notch features, and what licensing options are available. Another new article, "Compare the distributed DB2 10.5 database servers" has a similar intent, but focusses on features by edition and is organized in a table format. The third installment, "Licensing distributed DB2 10.5 servers in a HA environment", does exactly that. :)