Microsoft Softgrid 4.5 will be branded Microsoft Application Virtualization. 4.5 will enable better localisation support (every supported windows language). Also 4.5 is better scalable for enterprise solutions. The beta of 4.5 is avaiable now.
Microsoft Application Virtualisation 4.5 is only available through volume license (Software Assurance program) Final release in summer 2008
SoftGrid, Microsoft Application Virtualization, Microsoft