You can sign up now and be able to use a form of cloud quantum computing. I think to get actual access to the quantum computer, though, you have to explain what you want to use it for. So i'd imagine they are focusing on research projects or other interesting uses.

I went to a presentation by Gwen at SciPy2018 and got to talk to her a little later. They're doing some really cool things with this stuff. I think they're also trying to just get people more used to quantum programming in general. If you haven't looked up their PyQuil language yet, it's definitely worth checking out. https://pyquil.readthedocs.io/en/stable/