When trying to install Procaster or Producer on OS X 10.8 (Mountain Lion), the following error will be encountered:
This is due to the new Gateway feature that Apple has included in OS X 10.8 to prevent malware, viruses, etc. In order to install either of these applications, you should navigate to 'System Preferences' and click 'Security & Privacy'. The setting, highlighted in the image below, should be changed to 'Anywhere' to allow installation:
Once this change has been made both Procaster and Producer should install without any issues.