I can't tell from the descriptions what the difference is between these 2 JTAG programming cable.  They both seem to work with iMPACT and Adept and both have the 6-pin Digilent and 2x7 pin Xilinx connectors.  The HS2 is $60 vs the HS1 which is $99. So what does the HS1 have that the HS2 doesn't? -Dave Pollum