Good news! The 11g version of Oracle UCM is finally available! This version is a bit of a re-write to run on top of the WebLogic application server. Oracle has been talking about this release for some time, so I'm glad to see it finally available.
Despite the architecture change, the basic administration interface should be familiar to existing UCM customers. The install is a lot different, and you'll need to learn basic WebLogic application server administration. This isn't as tough as it sounds... you can refer to my presentation on the top 10 things UCM admin need to know about WebLogic to get started. Once you wrap your head around the concepts of instances, servers, and domains, it's not too difficult.
There are a ton of new performance enhancements in this release... when using a half-rack Exadata Machine, they were able to get 180 million 100k document check-ins per day. Note: these are full document check-ins; not merely lightweight "object" storage. Now that UCM is the repository for IPM, you can imagine how Exadata makes an excellent addition to a high-ingestion setup.
Download performance is pretty good as well... using the new Open WCM technologies, Oracle was getting about 120 Site Studio web page hits per second on commodity hardware... Is that a lot? Well, by way of comparison, Wikipedia has a farm of 249 servers, and each node gets on average 80-200 hits per second per server... sometimes spiking to 250... and Wikipedia is using a very lightweight LAMP stack, as opposed to the full enterprise JEE stack that Oracle was using for their tests. I'm sure with a additional tuning (like a CDN) you could get more than 120 hits per second with UCM... but as a general rule, if you need more than 120 hits per second, you really need more than one server!
Since 11g is so new... Oracle University doesn't have any training for it yet. Luckily, my company -- Bezzotech -- can do Oracle UCM 11g training if you need it.