No, it's not "true" slow motion (as far as I understand this camera, anyway), but considering how current technology allows us to stitch together images and reconstruct beams of light in order to show their path at one trillion frames a second is simply amazing.
I'm sure this is probably a repost, but a search through our somewhat broken search engine yielded no results.
For those who don't want to sit through the whole thing, fastforward to 3 minutes. There's also an interesting bit in the second half of the video about taking pictures of a subject around a corner by using light photons and computing the path and time it takes for them to bounce back to the camera... a little bit like how sonar works.