Eric Steele, the Plone 4 release manager, has released the Plone 4 beta 1 egg to the cheese shop.
A few hours ago, Eric Steele made the following twitter post:
pypi certainly doesn't let me do quiet soft releases of #plone. ;) Shoot me any build issues before I turn it over to the installers team
So, Plone4 beta 1 is available for the impatient souls willing to try it out in a buildout, even though the installers are not yet available.
You can add the following to your buildout:
extends = http://dist.plone.org/release/4.0b1/versions.cfg
The Pypi page (with the Changelog) is here.