Hyperloop One was just hit with an explosive lawsuit from its co-founder
theverge.com
theverge.com
Seems to be a group who tried to steer the company in the right direction and lost.
Here's some good reading, though:
http://www.spacex.com/sites/spacex/files/hyperloop_alpha.pdf
Monorail; monorail; monorail!
Even the accuser's name. BamBrogan? Quite unique.