Larry, These guys are just providing the MEFI unique interface and memory maps, and as you say the file transfer capability. They Use Tuner Pro as the "User Interface" Tuner Pro is a freeware program originally developed by DIYGM guys. It is vary capable giving total access and control, but requires detail understanding of each of the ECU parameters and functions. Go to the Tuner Pro site and download the RT version and that should get you on the road to understanding what these guys are up to. It doesn't appear to be as user friendly as the InGenius SW that MSD has developed but this could save you money if you already have a MEFI 4b and don't want to buy another MSD version just to get the Scan & Tune capability. It also look like the program is not limited to just one ECU, but can be used on any unit as desired???? I just stumbled across this so there is alot to be learned.Have you used this? Sounds like this might be the fix for the MEFI system. Sure would like to see some more screen shots of the user interface. The only ones they show are file transfer screens.