Just came across the Space Show audio interview, and here is the link for the Ytube vid of the Google Tech Talks.
http://www.thespaceshow.com/detail.asp?q=1290
http://www.youtube.com/watch?v=1IXYsDdPvbo
and the main site info.
http://quicklaunchinc.com/hydrogen-gun-technology/
We talked a bit about these guys in the SeaLaunch thread below. this isn’t vaporware, they have already done scale model testing at mach 9.
am involved with a group doing fuel depots for asteroid mining, and we beleive this is the best answer for getting fuel up to orbit, and may be the best platform to start a Seastead in a manufacturing capacity too.
I was thinking it would take 3 platforms, 1 launcher, 1 support/admin, 1 supply/ maintenece, and later you could add floating downlink stations near major metro cities.