In the Mac version the screen jitters constantly. I'm not sure if that's intentional, but it made playing for any length of time overly difficult. Other than that, this is a really solid/simple idea for a casual high score game that I could see people getting into quite a bit. I really liked the slow down mechanic, though I wasn't quite sure what I was supposed to use it for. I also thought the glowing orb in the distance was my destination. I think that making a point to aim for, as well as including some sort of objects to collect as you fly, would really make this a complete and satisfying experience. FWIW, I'm also going to try the Windows version soon.
Good work, all the same!