Microsoft Beefs Up Offensive on VMware
WSJ has a nice write-up of the state of affairs with Microsoft Virtualization technology Hyper-V and compares the latest Microsoft moves in Virtualization, including its acquisition of Calista Technologies Inc., to VMware. WSJ also talks about Intel's and Phoenix' move to enter the hypervisor market with a version of a hypervisor in silicon.
Some additional details on c|net.