There are some new enhancements with Hyper v you should be aware of. Dynamic Memory- A new feature of Hyper-V™ introduced in SP1 for Windows Server® 2008 R2 that enables Hyper-V hosts to dynamically adjust the amount of memory available to virtual machines in response to changing workloads. The benefits of Dynamic Memory include higher virtual machine consolidation ratios and increased flexibility for managing virtualized workloads.
Microsoft RemoteFX– Introduces a new set of remote user-experience capabilities that enable a media-rich user environment for virtual and session-based desktops. RemoteFX can be deployed to a range of thick and thin client devices, enabling cost-effective, local-like access to graphics-intensive applications. RemoteFX also supports a broad array of USB peripherals to improve the productivity of users of virtual desktops. Microsoft RemoteFX leverages the power of virtualized graphics resources and advanced codecs to recreate the fidelity of hardware-assisted graphics acceleration, including support for 3D content and Windows Aero®. Multi-Site Disaster Recovery Automation for Hyper-V – not so new, but still important. For automated failover and recovery of Hyper-V workloads, organizations can combine StorageLink Site Recovery technology with Microsoft failover clustering to create a geographically dispersed (or multi-site) cluster. Together, StorageLink Site Recovery and Windows Server® 2008 provide a disaster recovery solution that automatically detects local application or hardware failures and responds with the appropriate failover measures.