Comment 2 for bug 1578153

I can reproduce this on the latest rc-proposed images with a number of apps (Fingerpaint, Flight Of The Amazon Queen, Beneath A Steel Sky), only one touch point gets sent through to the app for each of these; they sometimes see two points if both fingers are pressed down at exactly the same time, but no more than two points.

I'm adding unity8 into this as I suspect it might be related to the handling of the side-stage three finger gesture, which only occurs on tablet devices (explaining why it works fine on phones)