Microsoft has silently released 3 updates for Windows Ultimate users today.
Microsoft Tinker, Ultimate Extra sounds from Microsoft Tinker and Windows DreamScene Content Pack #4 are all available on Windows Update now.
Microsoft Tinker is a puzzle based game where players get a set amount of moves to move a robot around a puzzle and solve the level. The DreamScene content pack adds some new high definition videos for use on the desktop and the sound pack allows you to set your sound scheme to that of Microsoft Tinker.
Previously, Microsoft released a set of extras back in April and promised more offerings in the future. Like the update in April there has been no official announcement that these extras have been released on UltimatePC.com or Microsoft's main site.