From microsoft:
Windows Home Server features at a glance
* Your family's digital memories and media organized in one central hub
* Home PCs backed up daily, automatically
* Simple recovery of lost files or even entire PCs
* Complete access from networked PCs to all your Windows Home Server files
* A personalized Web address for sharing your photos and home videos
* Easy and quick setup
* Expandable storage space for future use
* Innovative third-party applications
Sharing:
The major issue is all family members can access photos, videos, movies and documents library any time anywhere around the home.
Standardize the applications like office and photoshop.