To answer your questions in the order they were received;
1) The full, printed, published real-deal version of Dungeon World is going to be released later this year. We're hoping to open the kickstarter late spring and have things up and running by then. That said, production being what it is, we can't say precisely for sure, but rest assured we'll be announcing it on the site, to the Guild and through Facebook and Twitter.
2) Access to the Guild is a bit of a nebulous thing. Basically, we ask for AP reports and feedback so that we know a) the people we're inviting are actually playing the game and b) looking to help us improve it! That said, we're not slapping NDAs on people and making demands. The Beta rules aren't being held hostage. Email us! Obviously our fans are why we exist, so just because you're not in a position to actively play the game doesn't mean you can't engage in the process. Hit up gm@dungeon-world.com and we'll see what we can do for you!