Its not the car/tech (Tesla) company Hyperloop. Its just a Hyperloop that is open source idea for anyone to use.
Tesla, Solar City, Space X, Hyperloop and even Paypal are all connected threw Elon.
Elon has no time to make the Hyperloop happen so he set out the idea in hopes that someone else would start it. It would be cool but I dont see it happening any time soon.
I'm more excited about Space X.