here's the announcement on 26-5-2008:
First Oracle.com Site Built on UCM Platform Goes Live
Oracle's CRM OnDemand website has been migrated from Oracle Portal to Oracle WCM. This eight month endeavour was the first pilot project for the migration of Oracle.com to the Oracle UCM Platform; other sites, including the Oracle Partner Network and the Oracle Technology Network will follow. The CRM OnDemand site is running externally (outside the firewall) for customers, and is accessible in different languages. Visit CRM OnDemand
This will help a lot in managing the huge amount of internal and external sites, and those sites has a huge amount of pages, documents, contributions, and a lot of other contents.
I was thinking a while ago about this move, as it is much more reasonable to present Oracle as one of the WCM references :)
and it will definatly be one of the biggest WCM references.
Well Done ECM Team, we're waiting the full migration announcement...