Hi Attila,
we'd be glad to answer your doubts, but please use the forum for
questions and any discussion, this mailing list is designated to
discuss development.
I won't answer your questions here to respect the other developers,
hope you understand.
I will rectify one message though: the JBoss Data Grid is available,
and it's based on Infinispan, so you can plan your architecture on
Infinispan today and then switch to the JBoss Data Grid.
Link to the forums:
http://community.jboss.org/en/infinispan?view=discussions
Regards,
Sanne