I have just tried VMware Fusion beta 2. It's a free download at the moment. I can now run XP Pro and connect to my office network and run Office. I wasn't able to do this before this beta version.
The dual monitor (or multiple monitors) feature is not as easy as advertised. I couldn't yet set all desktop on both monitors to show Windows but it's working after all in unity mode.
I have yet to run it for a prolonged period to see if it's practically usable.