The previous HTC Sprint 6700 and Moto 320 was a match made in heaven. All
features of VC 1.6 worked as advertised. The current problems that are
confirmed on numerous Moguls anf BT devices are;

You must disable the confirmation on dialing commands in order to get the
unit to work. The results in some misdials and teh cancellation requires the
press of a button and the unit on your hip at 70mph down the highway is
dangerous.
Drive First PDA second... But with a functional VC1.6 the safety quotient
goes up.