Did you manage to get the EMDK working? I'm having the same issue and I cannot make the RFID work under .Net
Do you have any updated samples of working RFID code?
No i don't think i got it working then. (this is an old threat).
I washowever able to play with the new RFID devices wih Android OS (TC25, MC33). There are some good demo apps for them with Zebra.
I am not sure about coding though, didnt get into programming with Java at the moment.