If you're just looking for something to put a laptop on while standing, an adjustable music stand works nicely.
Here's to hoping one day there will be a large open-source DIY plan community. The $500 price tag is something I can't justify, but I would love something similar.
I have one of these desks. I built a custom top for it so just bought the frame. 500 dollars for the frame is a lot, but it's one of the only frames I was able to find that had a large range of adjustment.
The commentors' opinions are the most valuable part of this article - the piece itself almost reads like a paid advertisement.