Wow, what a night! I was able to successfully install Windows-7 Beta in Ubuntu on my Acer Aspire One with VirtualBox.
This is not a tutorial - just a documentation of what I was able to do!
I would like to start out by referencing sites that helped me out.
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Getting wireless networking was key-
How they did it at SunOk, First .. a pic of my success!

Ok, Here is how it goes down:

The black screen seems to last too long - but I think it is because of the tiny bit of ram I allowed it to use (512mb)

Before long, though, things start to look pretty and I begin a simple install process:

Always - The need to agree to the EULA - actually, a very straightforward EULA, not unreasonable to my untrained eye. Logical for a Beta product from a closed source company.

I had to make sure to give myself a 20Gb drive - It apparently wouldn't recognize my previous 10Gb drive. I read somewhere it needs 16Gb to be installed. I picked 20, and it worked ok.

Some pics of the installing:




Then, the moment of truth .. will it work?

This is pretty - the bright light thing is going back and forth light NightRider :)

Looks like it is working...

Whoo Hoo!

Internet Explorer opened up for the first time (with my successful wireless internet connection)

The default desktop - classy, practical, stable so far for this Beta product!

All in all, I learned A LOT about virtualization, and as much as I dislike the products of this company (as those who know me will attest), this is a promising product. I look forward to participating in this Beta testing and hope to be able to assist in finding/confirming bugs (as much as a closed source project will allow me). I will definitely support Microsoft with my feedback (see the icon on the Desktop).
This is my first attempt at something like this - I will also need to start seriously helping out Ubuntu in a similar way - any suggestions?