They are, but I just tapped, slid, and otherwise pounded my phone against my leg and arm to see if it would change the settings. Nothing happened. No volume shift, no skipped songs, nothing. We'll see what happens when I've got it in my pocket, but hopefully that was just a bug they've somehow desensitized.
That blows. I'm not registered, and my OTA update worked just fine. I don't think I'll be updating to Beta 5 down the line in case they are actually able to hit the people they're really targeting. :x