From the description by uploader Alex Neihaus on Youtube:
 the screens shown were pre-release versions of the product, the music was an original composition (not stock music) and at an AIA convention, Revit rented a 20,000 watt stereo system and mounted it in a 16-foot glass tower to overpower the competition. The video was produced on a then massively sophisticated Avid system with something like 54 layers in Watertown, MA.

Here is the promo video:

I extracted some screenshots out of it, and here they are – prerelease Revit!