The answer to smooth video on the w1070 is SVP, ran from a PC, Mac, or Linux machine.
It works and looks great and allows the w1070 to really achieve its full* potential.
Plus, it's free
I bought the Pro version just because I was a kickstarter backer, and think this work deserves financial support. It has regular updates and keeps getting better and better all the time.
*actually, to really achieve the full potential, one should run the w1070 at 71hz via the VGA port, but use 10-bit color RAMDAC. That will allow SVP to look even smoother, and support 10-bit without dropping to 422 YCbCr, and this will become more important as 2160p 10-bit streams (and rips to 10-bit 1080p) become more prevalent. 10-bit color massively reduces bandwidth and is worth it. I bought a DisplayPort 1.2a to VGA converter from Amazon for like 40 bucks, so that I am UHD 10-bit ready. (444 10-bit video).
With SVP the de-synchro (71 hz is just barely not capable of 24hz x 3) doesn't matter. I haven't tried it yet, but I suspect it just might be possible to feed my DP -> VGA converter a custom resolution of 1920x810 with 10-bit at 72hz. An even multiple of 24hz would make SVP work even better, because only 2/3 frames would be smoothed and therefore reduce haloing by 33%.
For scientific-minded rationalists out there : 1080p video at 72hz is MUCH clearer than UHD @ 24hz for any scene where the camera or a substantial portion of the screen is in motion. Movies often have a static camera but moving actors, but in action movies when the camera moves, forget UHD, the inherent motion blur of the film process makes 1 pixel of accuracy a foolish dream.
So people who are buying UHD projectors just to go "ooh and ahh" when they look at static screenshots are missing the big picture (no pun intended). They are leaving a lot of motion resolution and image quality on the table by not using interpolation, especially for foreground objects like people that are in motion, and where your eye isn't likely / supposed to be fixated on. Most of the time the background is out of focus anyway, and the director directs the viewer to look at a smaller area of the screen that they want you to look at, through focusing on that area (depth of field). And only that area could possibly achieve 100% motion clarity, however without a higher framerate than 24hz, your eyes are basically being starved for information. Feed them with as many new / up-to-date pixels as you can give them by using 60 / 72hz. It's the right thing to do.