Just wanted to subscribe as I am sure I am going to hear here first then get an invite to participate when they open up December. Tried to do online check-in today on MDE and received the Goofy Error page when going from Page 2 to Page 3 (happened after hitting next when it asked to select PINs for payment). Eagerly waiting as we would like to have Magicbands since we normally just go with keys and a photo id so this would be nice for touring 


), I got the same thing you did, in the same place. I waited a couple of hours and tried again. This last time, I was able to go through the entire process, but at the very end, I got a Goofy error message. However, now if I look at my MDE page, it says "Modify" instead of "Online Check-in", so I think (hope) it worked. 



I will call in a couple of days to see.