I have the other one (non-blendmount) and mine does not touch the screen at all.
Mine will rattle a little if it sits in the hot sun for more than 4 hours as the plastic heats up and expands a little it seems. Not a huge issue as after you just touch the unit it stops.
On the hiding the unit. I have been researching taking the v1 concealed unit and ripping out the hardware and mounting it in the rearview mirror and mounting the v1 unit in the rear middle. This would provide a good bit of front radar detection and the same rear detection. Only thing I am still researching is the controls so you can have quick access.
Just an example of what it could look like:
