From reading all the posts on other boards, it appears that it will be sent out to all the earlybird A1 owners, which I don't understand, I thought it was only a free or reduced price copy of the final consumer version that they would be receiving.
Because I want to try OS4 mainly for programming, I will buy an A1, but I'd rather not. I think the A1 will be a dead end because there's no real money backing it up. Upgrades & subsequent revisions takes cash and there probably aren't as many interested buyers necessary to keep it going. Seems that the target demographic for OS4 is already split among the die-hard classic OS users and MorphOS users.