Good, because snapshotting is not backup. And adds tot he backup / restore complexity.
SCVMM does not do backup - it does management.
You still need a backup solution (either software or process).
There are hacks to use Windows Server backup - enable the VSS writer and then script.
Then there is Data Protection Manager from Microsoft.
And then there are a number of thrid party backup solutions that are Hyper-V aware/happy.
ther are folks using SAN replication, file replication vendors have also jumped into this, there are folks using scripts to do VHD copies (shutdown the VM, copy, start), there are folks using Windows Server Backup, there are folks using DPM, ther are folks using the third party products.
Brian Ehlert (hopefully you have found this useful)
BackupChain will definitely be the right thing for you. It compresses with delta compression, runs in the background as a service, and sends the delta files over FTP fully automatic while the VM is running. It has a built-in FTP server as well so you can receive and reconstruct the images easily at a different site.
The perfect thing about is that incremental backups tend to be very small so you can ftp the day's worth of changes in say 10 to 50MB which is OK for dsl bandwidth.
I'm Using Cobian Gravity Backup to backup my entire Virtual Machines to a shared Drive/Folder in a remote location.
All of my Virtual machines are in its own seperate folder hence it makes identify the Backup easier and also Cobian Backup is free. it can be installed as a service and also VSS. Configuration is quite easy and staright to the point.
you can runs a Full, Differential, Incremental or Dummy Backup
This form of backup has made it easy for me to recover from a server crash without loss of files