Citrix Releases it's XenDesktop VDI product:

See this article for more info.
Interesting info:
"To deliver its out-of-the-box Virtual Desktop Infrastructure, Citrix includes with DDC several other products: the back-end virtualization infrastructure (XenServer), the streaming server (Provisioning Server), the application virtualization & streaming server (XenApp), the SSL VPN gateway (Access Gateway), the monitoring suite (EdgeSight), the QoS engine (WANScaler), the remote control (GoToAssist) and the VoIP gateway (EasyCall)."

"It's worth to note that while Citrix offers its own hypervisor with XenDesktop, the product also supports VMware ESX and Microsoft Hyper-V once available."