I believe Cobra is correct.   But that said -- iFly is definitely written to be very portable.... we run on 4 platforms now with 98% the same code.   It's possible that we could run on Linux too without too much work.  However, I have a feeling that Linux has been left-behind, and may have notable deficiencies and nuances that may prevent us from supporting it.  And as Cobra mentioned, there would also need to be a trend of users actually WANTING Linux support.