It's actually all rather brass of Oracle. While the US Department of Justice approved Oracle buying Sun Microsystems, the European Union has not, stating worries about the future of some of Sun's open source products. The EU is specifically worried about MySQL, since Oracle is the world's largest proprietary database software company, and Sun the largest open source one.
While published in Europe, the ad in question, however, does not mention MySQL's future; it is completely focussed on Solaris and SPARC.
Actions speak louder than words, of course, so only time will tell if Oracle prefers talking instead of walking.