What he currently sells is a program he tested by using EPROM programming (much like the zemulator) and then you send your ECU to him and he puts in the EPROM and sockets it.
The zemulator is just going to be a socketed extention that goes to a laptop that acts as a piggyback eprom emulation program to allow you to make real time adjustments to yoru ECU
S-A-Polishing..........for all your polishing needs!