1-Wire DS18B20 Does it work on a Netduino Plus 1?

Hi all,

I've been reading thru tons of threads on the DS18B20 with the Netduino, but am confused as to whether it should or shouldn't work on a plus 1.  The firmware has been updated to 4.2  

I have added the Microsoft.SPOT.Hardware.OneWire to references and the sample code that I've found appears to build and deploy ok, but I get a  System.NotSupportedException on the first statement that accesses the OneWire Device   ... if (OneWire.touchReset() > 0)

In reading thru CW2's Alpha One Wire post I get the impression that his fix works on 4.1.1 but not 4.2 

Does anyone have this working on a Netduino Plus 1 with 4.2?

Thanks