We have not implemented a Geo Cluster with NetApp but we are using SnapMirror and Symbolic Links allowing us to link the same VM configuration on two different Hyper-V clusters in different location.
We use BCG to route our production LAN to our DR sight and NetApp snapmirror to replicate our VM and data. Works pretty good and takes about two hours to failover and bring up Exchange, SQL, and Sharepoint on the same network without any modfication to actual VM network configuration.
However, the setup of the Symbolic links is complicated and difficult to do during the DR and requires some up front time to ensure you can meet failover SLA.
An alternate method is to export VM's and use SCVMM to deploy them on your DR Hyper-V cluster. Maintaining two seperate identical VM configuration with same Network configuration while replicating your LUN and VHD's with NetApp SnapMirror.
Also, Citrix Essentilas 5.5 for Hyper-V is advertised to have the same functionality as VMware SRM and has a plug in for NetApp. I do not have experience with it yet and it does requires SCVMM R2 in both sites.
Regards,
Robert