These guys sell it
http://www.mountguys.com/product_p/sf240-netbook.htm
It was originally made for dvd players...but since those have kind of died out they now sell it for netbooks. The platform has a spring loaded base to keep the dvd player from skiping but it made the netbook move to much so I took the base apart and got rid of the springs. Now it is much more secure when using. It come with the mount that I used our you can mount it to the seat bolts. The main seat bolt had to big of a diameter for the mount and I did not want to use any of the secondary bolt so I just mounted it to the fron of the center console. It is nice and secure, I ran three bolts with nuts all the way thu to the inside of the storage area under the cup holders.
