As Microsoft introduces Windows Server 2008 R2, Citrix expects to release a final version of XenApp on Windows Server R2 in the first half of 2010. But you won’t have to wait that long. This fall, Citrix will release a Tech Preview version of XenApp for Windows Server 2008 R2 to showcase our complete application virtualization technology suite and deliver powerful solutions for our joint customers.
Link – http://www.citrix.com/English/ps2/products/feature.asp?contentID=1854441
