Yahoo! news reports, EU probes Oracle-Sun deal, cites open-source issue
The center of the issue coming form the EU commission is that Oracle is the largest database company and it is taking over the largest open soruce database. According to the newsreport, The EU commission has noted that the database market has 85% control in the hands of only three companies — Oracle, IBM, and Microsoft. Thus, they are weighing the risk that a high visibility, open-source database could be hurt by the Oracle purchase.
It will be interesting to see what safeguards are required to keep MySQL in the hands of the open-source community—if any