Power Pack 2 Microsoft only shop
Microsoft plans to release Power Pack 2 for Windows Home Server with
improvements to remote file access, as well as the sharing and streaming
of video and music files.
However if you have Linux systems in your house or anything fruit
flavoured you might as well forget it.
Microsoft is also making WHS available for free to software developers
who subscribe to its MSDN or Technet networks. This is so that
developers will write software add-ons for the thing.
Not included in Power Pack 2 is the ability to do automated backup and
monitoring of Mac OS and Linux PCs in the network.
WHS can automatically back up Intel chip-based Macs, if they are running
Windows via virtualization software from vendors such as VMware Inc. or
Parallels. Since we are talking home users this is not that likely.