Joel just posted an entry about the future. How in 10 years everyone will have a home server. Glenn Derene is right...the idea that homes everywhere will have at least one, always available, powerful computing node providing services for the other devices in the house...something that truly enables a rich platform for the home...is a core part of our vision for the future.
But here and now, we are really just getting started. And the # 10 comes up again. We designed Windows Home Server to be simple. It turns out that the number 10 is a great rallying point for simplicity. UI lists with more than 10 items get cumbersome for example. So Windows Home Server supports up to 10 user accounts and you can install the Windows Home Server connection (and thus back up) up to 10 PCs.
I was also born on September 10, so I have a particular love of the number 10.
P.S. the first person who posts a comment accurately describing why I felt compelled to post this entry gets a Windows Home Server coffee tumbler.