I've a question, I've searched but i don't kwnow how to search for this cuestion, my English level isn't enough ^^.

The cuestion is:
Can I have some accounts in Open Source, some in Standar and some in Professional Edition?
And if I buy Zimbra Mobile can I also use it on the open accounts?

Thanks (and sorry if this thread was answered before or if this isn't the place for this).