Cardo Systems have just released a software upgrade for the Scala Rider G4 BlueTooth Communicator which add some cool new features including:
• Click-to-Link for spontaneous intercom connections to random G4 users nearby (in addition to existing pairing)
• New Voice Configuration Menu
• VOX and AGC (Automatic Gain Control) Calibration
• Volume Per Mode
• Stand-alone A2DP channel
• FM Radio enhancements
These features will make any G4 unit more customizable also allowing updated connectivity with newer BlueTooth devices.  This download is a must for all you G4 users out there! - Patrick