Does z/OS speak TCPNJE? I thought it had to be SNANJE (at least that was the deal back in 2002 when I last looked into this). Have the z/OS guys finally seen the light and provided a TCPNJE protocol?
Yes, finally, z/OS 1.7 and later have TCPNJE (although you need some PTFs for it to work correctly on 1.7). Previous to 1.7, you'd need either RSCS (SNA or CTC) or the full NJE Bridge (via CTC).