Castle link hand held programmer

Is there any possibility of this coming out any time soon? Or some kind of programable card that can up load different settings, to a MMM. Being able to hook the card up to the computer and change parameter would be cool to.

I am getting a 4s and a 6s lipo soon and i like to set my l.v.c. a little higher then normal. Also I want to be able to change settings from racing to bashing. My main problem is, my computer is a Mac. I don't get access to a windows based PC to often.