The US startup Embotics, launched in September 2007 with a VM lifecycle management product, V-Commander, just closed the last agreement to secure a strong support from the biggest virtualization leaders: VMware, Citrix and Microsoft.
It launched as VMware Technology Alliance Partner, then it joined the Citrix Global Alliance Partner Program and now it joins the Microsoft Accelerator Program.
At this point Embotics should have all necessary resources to deliver a fully featured cross-platform management product.