Michael, a 64-bit build and Mac native build would be massive, instant upgrade right there for me since I mostly work on Mac! Also, pretty please, can you have a look at HiDPI support on for the Mac build?

I write numerically intensive analog modelling software and didn't expect much gain between 32-bit and 64-bit builds because I don't use much RAM, but it was a big speedup due to faster SSE operations which I didn't expect, so hopefully it will make an even bigger difference to MOI since memory access will hopefully also be helped. I think the main SSE speedup was because you have twice as many registers (16 total instead of 8) to work with for the 64-bit build, so more twice as many things can be stored in the fastest computational memory possible.