Smittie, I can assure you that if the process of creating a Mac version were as simple for us as you described, we would have done so a long time ago. As you pointed out there is a great deal of interest in a Mac version and if we could easily create one we would be stupid not to.
However..... Our problem is that our current development environment does not provide an easy way to compile a Mac version, and the process of creating a Mac version will take a substantial time commitment. Although this website may make it appear that there are more Mac users, everything else points to the fact that there are more Windows users than Mac users and thus we feel that providing additionaly features to our Windows programs would currently benefit more users.
In the long run we do plan on adding a Mac version.