I registered directly after the registration page went live. But I have not received an email invitation to the beta program. I would die for a participation link, since I am traveling a lot and it would make zwifting far more easy to maintain on the road.
I just received an email from Zwift detailing the restrictions of the beta program. The onboarding will continue over the next weeks and will cross my fingers to be in one of the next batches.
As stated in the stickied post, please do not post in the iOS Beta Feedback forum unless it is tied directly to feedback for the iOS Beta version of Zwift. I have moved this thread to General Discussion.