While I'm recovering from the Virtualization Launch Event here in Bellevue yesterday (you can view the keynote sessions and all the breakouts here), there's even more Hyper-V news to share. My colleague Patrick O'Rourke had posted previously on this, but I'm proud to announce -

The final version of the Linux Integration Components for Hyper-V have been released!

Driver support for synthetic devices: The Linux integration components include support for both the synthetic network controller and synthetic storage controller that have been developed specifically for Hyper-V. These components take advantage of the new high-speed bus, VMBus, which was developed for Hyper-V.
Hypercall adapter: The Hypercall adapter is a thin layer of software that translates the Xen-specific virtualization function calls from a Xen-enabled Linux kernel to Microsoft Hyper-V hypercalls. This results in improved performance for the Linux virtual machine.
Fastpath Boot Support: Boot devices now take advantage of the storage VSC to provide enhanced performance.

Integrated Mouse support will be coming soon.

The final versions in 12 languages (with localized read me's) have been posted to the Connect site here. The registration is free.