Tuesday July 14th, 2009 afternoon; Apple seeds Mac OS X Snow Leopard Developer Preview Build 10A411. The update is available through Software Update and weighs in on 748.1MB.
As usual, Apple Developer Connection members are bound by the Non-Disclosure Agreement (NDA).
From Software Update:
This Snow Leopard Developer Preview Update is recommended for all users running the Snow Leopard Developer Preview Build 10A402 or later. This update includes general operating system fixes for stability, compatibility, and security.
Mac OS X 10.6 Snow Leopard Developer Preview is not recommended for casual users and production system since it still contains numbers of software bugs.
This Snow Leopard Developer Preview Update is recommended for all users running the Snow Leopard Developer Preview Build 10A402 or later. This update includes general operating system fixes for stability, compatibility, and security.
Build 10A411 also includes Safari 4.0.3 to Snow Leopard.