I am interested in this as well. We have a "trial" version of 5.2 running which is going well. I have a lot of users to move to it in the next couple of months, but would rather migrate it to 6.2 first. I think it would be much easier to do now while it is lightly used rather than later when it is being heavily utilized! Does anyone know if a migration plan will be forthcoming or if it is even possible?