We like to implement, test run and release the software of the platform at a pace that ensures that it is robust when it enters production. That is why we take our time going through the different stages of the rollout.
At this moment small website implementations have entered the production stage. They are available as cloud-based installs only. More complex web solution implementations and standalne installs will become available from late Spring 2013.
By the end of 2013 we plan to bring clustered installs into production capable of powering complex distributed web solutions.