I you have a Windows Home Server than I have an app for you. WHS Phone lets you connect to your Windows Home Server and browse files, stream music, view photos, etc. So music from your server can go straight to your phone and you can upload photos from your phone to your home server or view photos on your phone from your server.
Here it is in action:
Pretty neat and it’s available now for $4. You can click this link to go to the app in Marketplace or check out this site for more info.