Windows Desktop Search v3.01 Released
Go get it here. WDS v3.01 now includes support for group policy and the UNC protocol handler to allow indexing of shared network directories and shared FAT drives. This is the recommended upgrade for v3.0 or Office 2007 users. It can be installed as a new install or as an upgrade.
The SDK has also been released (blog updated on Mar 13, 07).
The Admin guides are posted here.