Thanks for the tip! I think I'll use a different site for image hosting in the future; I'm at work now, and this PC doesn't have an ad-blocker, and that site puts some god-awful screen-covering ads up.
I don't usually put my phone on the dash, but there are two times a week when I participate in conference calls from my car. There's one area that I drive through where I'm almost guaranteed to drop the call, unless it's on the dash. I find that I almost never drop the calls with my phone up on the dash. And the phone never moves around on the dash, so I usually don't worry about it.
I don't ever put the phone this far forward on the dash. This screencap happened to catch the phone in mid-slide, as I had slammed on my brakes for the last-second lane changer ahead of me. I'll post the video up in the near future!