I wonder why you don't release the sourcecode er even try to port this amazing
program to another OS's like unix or linux due no r/c sim is currently exsisting on that OS. The Problem is that FMS uses DirectX and to make it portable you'll have to rewrite it with use of SDL (www.libsdl.org) but that'd be alot of work but i'm sure a lot of unix/linux users'd be glad if it is possible.
best wishes
dragon