Hi,
Some of the features mentioned are available when using vSphere Replication together with SRM:
- Failback with automated reverse replication configuration (available since 5.1); manual configuration of replication in the reverse direction and using initial copies is available since SRM 5.0 (or in VR 5.1 without SRM)
- Network customizaion (network mappings) (available in 5.0 and onwards)
vSphere Replication works in both single vCenter server topology (so called ROBO case - remote site hosts replicate to hosts at a central office, managed by a single vCenter server) and also per-site vCenter server topologies.
The other features mentioned by ch1ta are being addressed in upcoming releases.
Regards,
Martin