OpenVZ doesn't work properly with jvm. As is mentioned repeatedly in these forums jvm requires a certain amount of hacking to work reliably.Besides, what feature do you miss in OpenVZ?
Dietmar,Well, there seems to be a basic misunderstanding here: you can use other FS in OpenVZ, but then quota does not work. LXC does not have FS quota support at all, so you do not gain anything using LXC.
Okay, I will checkout your linksThe only change is the license. We moved from GPL to aGPL, see http://pve.proxmox.com/wiki/Open_Source
There is no difference between private or commercial use, you just need to respect the license.
You CAN buy support, like you can do it now, see http://www.proxmox.com/products/proxmox-ve/subscription-service-plans
We plan to get a 2.0 stable as soon as all needed feature are implemented and all major bugs are fixed. Probably between end of 2011 or in Q1/2012.