From the update:
People are clamoring for more rules info, so we had our trusty rules scribe, David Freeman write up a rules overview for you.
Please note that these are NOT complete rules. It is an overview that only reflects where the rules are in their current stage of development. Things can and will change.
Nonetheless, feel free to post your thoughts in the comments section of the update. We probably can't answer all of your questions at this stage, but we'll definitely be reading.