I recently (3 months ago) purchased a Scion xB and had similar issues with where to mount my laptop. I own my own company, and am constantly on the road (and in my car). My laptop is my lifeline.
Since the day I purchased the Scion, I knew the little compartment in the center console was the key, so I decided to sit down and design a system that would allow me to take advantage of this compartment, and solve my problem.
Well, to make a long story short, the end result was very pleasing. I have been using the "xTray" for about a month now, and have never been more comfortable in my little xB.
The design of the tray came out so well that I decided to create a website around it to not only promote it, but also promote my company. The site just went up, so the only product on it is the "xTray".
If you are interested in seeing it, you can go to my website, lasermystuff.com, or just view the attached pics. There are several other pics on the website as well.
I hope this helps all those out there that have a similar problem. I know it has made my life a lot easier. The "xTray" has truly converted this great little commuter car into the ultimate portable office.