Hey Coasterguy. You beat me to the info about Yeti Vision, the game, but you had more info about Yavn than me. I also went to
Disneyland and tested out the game on Thursday. I was there long enough that I probably saw Yavn, but I had no idea who he was. Crazy coincidence. The funny thing is that I also met him in vmk the first day I started the game and even played a game of pirates with him, but had no idea who he was then, either.
In any case, the Yeti Vision (possible title - they are still deciding) game was a pretty straightforward adventure game of the sort where you solve puzzles, figure out clues, and use objects that you pick up to make your way forward in the game. It was cool to try it out and give my feedback. Altogether, it was a fun addition to my day.