Nah never gonna happen Even if microsoft goes bankrupt they still will leave their code proprietary, the code can be put in the basement to die off and for nobody to use, not that microsoft needs the source. Sad but sharing is for them like communism - something scary.
I have a virtualbox installed, i'll check the performance of FL if i find the nerves to install windows XP or even 98 in it. My pc is fairly old thou so you might get different results.