In the steam 1.03 notes, you dropped the wrong url. http://the.unexpectedreboot.com/a72260 You meant to link to the video of Richard. Instead, you linked to a png.
Also, I was registering some codes from Backerkit, and download of UA (for OSX) started. This is not the backer distribution. http://the.unexpectedreboot.com/d51b8c I assume this is the play-testers build as there was no announcement indicating the OSX release was completed.
Edit: Whatever build it downloads, it just crashes at launch with no error message. I’ll go digging for error logs sometime later.