New features we should be seeing include:

* Multi PC management - designate a hub PC and then add additional PCs to your OneCare circle using a common Windows Live ID. You can then see the status of the other PCs within the group.
* Printer Sharing - share your printer with all the PCs in your OneCare circle
* OneCare Online Photo Backup - paid storage is available online for photo backups (we're hearing 10GB but that could change by the end of the beta)
* Securing wireless networks - if your router is supported OneCare 2.0 will allow you to secure your wireless network
* x64 support