We use a number of Windows Live services at LiveSide, and now our Community Server guru, Nick Brown, has started a CodePlex project, "Community Server Windows Live Addons", at www.codeplex.com/CSLive. He's starting out with two controls:

Currently there are two controls in the package, the windows live presence addon for adding Windows Live Messenger Presence icons to your installation, and the 2nd is the Windows Live Single Sign On Addon for Community Server.

Nick plans to add more to the project, including Translator Controls, Live Search Control, Live Messenger IM Control, Live Contacts Control, and the Live Search Provider.