'svcutil.exe' assembly that ships with Orcas Beta 2 is "broken" - it is not signed.

Running it will result in the following error:

svcutil.exe has encountered a problem and needs to close....

WCF Test Client: Failed adding service./
Unhandled Exception: System.IO.FileLoadException: Could not load file or assembly 'svcutil, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. Strong name validation failed. (Exception from HRESULT: 0x8013141A)
File name: 'svcutil, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' ---> System.Security.SecurityException: Strong name validation failed. (Exception from HRESULT: 0x8013141A)
The Zone of the assembly that failed was:
MyComputer

This is a known issue - (http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1932994&SiteID=1)

The fix is - navigate to the Windows SDK directory (e.g. C:\Program Files\Microsoft SDKs\Windows\v6.0a\bin) and run "sn -Vr svcutil.exe"