[Connecting to Oracle data source]

I am using the trial version.  I have the Oracle client software installed on the sharepoint server where this is installed.  Oracle is not an available data source.  Only have SQL Server.  Is Oracle supported?

[Auto-refresh / updates for webparts]

I agree.  I am demo'ing the product right now and that was the first issue I noticed.  There needs to be a way to set it to refresh at some interval between 1 sec and several minutes. Yes different web parts may need different refresh rates.  Be able to display a custom message related to the connection failure would be great.