Indeed! That's where they are, but those builds won't work without a 2.0 license. The license will be made available once you've been officially granted access to it, which is, once again, by request to firstname.lastname@example.org. At this point access is being limited by an arcane formula involving astrological signs and PayPal account balances, or so I'm told.
Ok, seriously, we are restricting access to avoid being overwhelmed by feedback and, anyway, this release may well kill your dog. It's not ready for a public beta.