Needs work and lots of it.
I downloaded it and its not cheap. Its choppy, laggy, slow, no good for nothing crap like the rest of the desktop viewers out there. I have an older iMac running Yosemite and an iPad Air. If you want an exercise in frustration, buy it now. I wont bother opening it again until I see an update.
mfdcap10 about
Air Display, v3.0