Since July 16, 2010 we have released the first version of the SharePoint 2010 Administration Toolkit. In this toolkit we’ve included a couple of tools that were shipped releases and are now adapted to SharePoint 2010, along with two new tools.

• User Profile Replication Engine 2010 (UPRE2010): this tool got a complete overhaul and was converted to PowerShell. It now allows you to replicate Profile and Social data between SharePoint 2010’s User Profile Application (UPA), as well as backward compatibility with SharePoint 2007’s SSP. You can replicate between SSP’s or UPA services, as well as across versions. (Note that only Profile data can be replicated across versions, as SSP contains no Social activity tracking).

• The Security Configuration (SCW) Manifest: SCW is an attack surface reduction feature in Windows Server. This manifest adds roles for SharePoint 2010 Products to Windows Server 2008 with SP2 or Windows Server 2008 R2.

• The Content Management Interoperability Services (CMIS) Connector: enables SharePoint users to interact with content stored in any repository that has implemented the CMIS standard, as well as making SharePoint 2010 content available to any application that has implemented the CMIS standard.

• The Load Testing Kit (LTK): LTK generates a Visual Studio Team System 2008 (VSTS) load test based on Windows SharePoint Services 3.0 IIS logs. The VSTS load test can be used to generate synthetic load against Microsoft SharePoint Foundation 2010 as part of a capacity planning exercise or a pre-upgrade stress test.

Note:
The User Profile Replication Engine and the Content Management Interoperability Services are not supported in SharePoint Foundation 2010.

If the source or target server is running Microsoft Office SharePoint Server 2007, that source or target server must be updated with the June 2010 Cumulative Update (or a later cumulative update).
For additional information about the June 2010 Cumulative Update, see http://support.microsoft.com/kb/983310/.

More Information:

SharePoint 2010 Administration Toolkit (SharePoint Server 2010)
http://go.microsoft.com/fwlink/?LinkID=125907

SharePoint 2010 Administration Toolkit (SharePoint Foundation 2010)
http://go.microsoft.com/fwlink/?LinkID=125908

The toolkit can be downloaded from here:
http://www.microsoft.com/downloads/details.aspx?FamilyId=718447d8-0814-427a-81c3-c9c3d84c456e&displaylang=en

The toolkit documentation can be found here:

SharePoint Foundation 2010: http://technet.microsoft.com/en-us/library/cc508986.aspx 
SharePoint Server 2010: http://technet.microsoft.com/en-us/library/cc508851.aspx