Interesting. The took a linear rail system with a linear actuator, screw drive movement system (notice the gigantic screw) and added cheese plates, feet, and mounting plates. However, I'm interested to know if they'll release custom-made software to control the linear actuator. These are usually used in large scale CNC machines, or other industrial processes. It also looks like they're using self-lubricating linear bearings instead of traditional linear ball bearings to reduce noise during movement.

I did an obscene amount of research trying to figure out if building a DIY version of something like this, or something simpler would be viable/budget friendly. Here's a few of the companies that provide the parts seen in the video. Definitely something to look into though. I was even looking at developing a linear-rail full sise dolly system with the engineering department of my University while I finished my masters.

http://www.pbclinear.com/Pages/AllProducts

http://www.leelinear.com/components/

http://www.lm76.com/ (this company has already outsourced and developed custom made linear slider systems)

http://www.smi4motion.com/smi2/index.php

There are tons of others I don't have bookmarked on my laptop, but a quick google search of linear motion systems will produce a huge array of supplies and products.