We want a raw-ish feel but with snapshot capabilities. Do not use raw. Do not use vmdk. Qcow2 is ideal because Longhorn will crash often. With qcow2, you can instantly roll back.
This restoration takes versus reinstalling which takes 40 minutes. For Longhorn research, qcow2 snapshots are non-negotiable.
"Work" is relative. You cannot get Aero Glass (DWM) working perfectly in QEMU because Longhorn expects a specific NVIDIA or ATI card with a T&L HAL. However, you can get a stable 1024x768 desktop with the sidebar enabled.
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