Microsoft's releasing their yearly update for Windows Home Server tomorrow, and it's called Power Pack 2. People who like putting all their files in one centralised, networked place should be excited.
Among the features are improved and simplified remote access handling (it's just a one-click affair now), as well as media sharing through Windows Media Centre extenders. Previously, you could grab files off of a WHS machine with your 360 through the videos app from the dashboard, but now you can go through Media Centre Extender and keep the snazzy UI intact. There's also MP4 support, plus a bunch of bugfixes that you'll be happy to see.
Grab it tomorrow (the 24th) via Windows Update.