Jongurley,
I could agree with you on this but I cannot consider a simulator that work only with serial connector... one of the afp's developer has written, in a post on Ikarus' forum, that they don't consider to 'migrate' to a usb connector until new pc will have a serial connector, IMHO this is a very good reason not to buy Afp.
Ok, we can compare Afp and Xtr when it will be available but, always IHMO, I think Xtr is more real than Afp.