I think I have posted this very early, but when I ran the beta from github (code from Oct 4, 2010), PCLN does not clone PHOT. PHOT just passes through PCLN even when powered.
I discovered this when I tried to use PHOT as a transporter of electricity. (Alternative to ETRD)
Another bug I discovered is that FUSE and FSEP only works when the Runtime Library Setting in Visual C++ is Multithreaded Debug DLL.