Microsoft has released the Windows Server 2008 Hyper-V! As promised, Hyper-V was released within 180 days after the RTM if Windows Server 2008. It was released over a month before the deadline set by the Hyper-V team.

Hyper-V can be downloaded from Microsoft today (starting at 12:00PM PST). It will also be pushed out through Windows Update in the next "patch Tuesday" release cycle which is July 8th.

There is more information on the Hyper-V release here: