It says the windows version was supposed to be out on August 27th. It seems like they're already developing it, but it just got delayed, no?
No, it seems to be at a stand still. Heres more info I found at their site...
"Sorry about the delay for Windows GM FoldLayers. I have broken my Visual Studio and haven't had the time to fix it."
The was posted a while ago. Ive sent them several emails which they have not responded to. Being a Mac based house and very busy I dont think its a priority for them anymore.