As with earlier beta versions of Mac OS X, I guess our rule about it goes like this:
1.) We don't discuss where to get beta builds. There's one legal way of obtaining a beta, and that's through Apple's developer program (Select or Premier members get access to betas of Mac OS X).
2.) If someone who _has_ access to beta builds decides to discuss them on macosx.com, we don't have a problem with that. We're all interested in information on how Snow Leopard behaves, what changes it brings etc., and how it's getting closer to release with every build.
We've never gotten into any trouble with these rules-of-thumb.
So: If you have questions about Snow Leopard (other than where to obtain builds), just go ahead. However, it seems like your current questions are "regular" Mac OS X questions, not specific to 10.6.