I know this is a vapid comment but the video on their website showcasing the Nebula Cloud Controller is slick.
The voice of Patrick Stewart at the start of the Nebula One launch video still gives me shivers: https://www.youtube.com/watch?v=r4rsEjsomFI
And don't forget back in 2011 with the launch of the company at OSCON with the who's who intro video before the presentation including hardware pr0n https://www.youtube.com/watch?v=3oydzMfFYWM
I also couldn't help, but think that http://opennebula.org/ will be happy for the end of the namespace collision.
Hubris videos aside, Nebula.com carried more than their share of the weight in the first 3 years of OpenStack, and made me believe that OpenCompute wasn't just Facebook. Thank you and best wishes to all who brought NASA Nebula to open source and made OpenStack a reality!