I just have a little question this past June I installed Zimbra 7.2 Collaboration Suite Open Source, and i search for some method the Migrate Exchange 2010 to Zimbra 7.2 but in that time there was no way to do this.

In August VMWare launch the new Zimbra 8, is it true that in Zimbra 8 Open Source, we can migrate from MS Exchange 2010 to Zimbra?

What are are requisites?

It is free?