After receiving my PFP today, I am really disappointed to learn of the incompatibility. The hardware is beautiful, but definitely not a great first purchase impression of WinWing. It appears that it simply needs a kay mapping file. As was said earlier, difficult to imagine that the three 737 sim variants have unique I/O interfaces... the differences in FMS functionality would be addressed in the PDMG code... We just need to map the keys to the corresponding functions in the game, and interpret the ASCII bytes being sent to the display... how hard could it be?