In checking my Windows Developer Preview, I have not received the update through Windows Update.
I downloaded the security file for Windows 7 and when trying to run it, Received the message, Not applicable to your computer.
The security bullentin states it is only for supported systems.
From the MS11-083:
This security update is rated Critical for all supported editions of Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2.
I don't know if this Security Bullentin will be ported to Windows Developer Preview. Check Windows Update often to see if it is offered.
Marilyn