Sun Microsystems release VirtualBox 3.1 at 11/30. The new version has new features that people looking forward to:
1. Teleportaion (aka live migration): It supports that to let virtual machine to migration between different platform, it enhances the virtual server with HA and flexibility.
2. Snapshots flexibility: The guest can rollback from different revision, and also can have branched snapshots.
3. Network attachement on the fly: The guest can modify the network interace on line.
More information, please refer to:
Wish this helps.