There was not a ton of new information about WIF and related technologies at Build, but Samuel Devasahayam did a great talk about claims-based access control that contained some very interesting bits of information with regards to future directions.

From his slides:

Windows 8

• Bring existing identity claims model into the Windows platform
• Domain controller issues groups & claims
• Claims (user and device) sourced from identity attributes in AD
• Claims delivered in Kerberos PAC
• NT Token has a new claims section
• Enhanced SDDL API’s to work with claims
• Enhanced user mode CheckAccess API’s to work with claims
• New ACL-UX
• Target audits with claims-based expressions

WIF & .NET 4.5

• WIF is in the box with .NET Framework 4.5
• Every principal in .NET 4.5 is a ClaimsPrincipal

ADFS 2.1

• ADFS 2.1 is available now as a in-box server role in Windows 8
• Adds support for issuing device claims from Kerberos ticket