They installed one of those in a car on Pimp My Ride for the chick witht he air cannon that shot the salmon egg grenades... Can't find a pic right now - still looking.
From -
http://www.windowsfordevices.com/news/NS6613235145.html
An in-vehicle "mobile office" computer
Microsoft and Stargate Mobile are jointly demonstrating "mobile office" (pictured on the right), a small, lightweight computer that can be docked inside a vehicle and used either within the vehicle or taking onto a job site. Running Windows XP Professional, Stargate Mobile's device provides workers with Internet connectivity and full access to Office applications, such as Outlook, Word, Excel, and PowerPoint, directly within the vehicle or at a job site.
Microsoft says that Ford will be the first automaker to offer the mobile office, branded "Ford Link," as a dealer-installed incentive later this year.