"There are a lot of nuances you have to work through when you give someone a personal desktop, and with this release, we are delivering that at no extra charge," said John Fanelli, Citrix's vice president for enterprise desktops and applications.

XenDesktop is Citrix's server software for delivering virtual desktops over a network to individual users. The new release, Citrix XenDesktop 5.5, has over 150 new features and improvements. "This is the largest release of XenDesktop in Citrix's history," Fanelli boasted.

This version is the first to incorporate the desktop personalization technology from Citrix's of RingCube earlier this month. This software allows users to customize their own personalized desktops, as well as allows organizations to embed departmental applications on these desktops. Earlier versions of this software could only serve up generic desktops, and any customizations made to them would not be saved after they were shut down.

The personalization technology, now branded "Personal vDisk" will be available as a separate download, and can be configured from within a menu option on the XenDesktop console, Fanelli said.

This is also the first version of XenDesktop that Citrix is advocating for use over WANs. Previous versions were more suited to deliver desktops over LANs (local area networks), but desktop performance proved too sluggish to try to run across longer distances. Citrix has improved its streaming protocol, HDX (High Definition User Experience), so that long-range streaming is now possible, Fanelli said. It can prioritize network traffic based on users, or the type of traffic that is being carried.