Bene, sono molto contento!
Version 1.4 has been released. Build 1.4.90426.1. It really has few user level changes from the 1.4 Final Beta. Some of the reports on the final beta have been pushed into the next release or as of yet unrepeatable from our end.
For a list of all the changes since Version 1.3 follow this link. The big change from V1.3 and V1.4 is the proper support of Reporting Service for SQL Server 2008. We had that in 1.4 Beta 1 but it is still the most significant of a number of changes and the entire reason that we got moving on a 1.4 version.