Razer's OSVR isn't a rival to the likes of Oculus Rift, PlayStation VR and Samsung Gear VR. Instead, it's intended to make life easier for developers to make applications for VR hardware, without technical (software and hardware) limitations getting in their way.
There's even a newer headset out aptly called the OSVR Hacker Developer Kit 2. It's got better hardware specs this time around with 2160 x 1200 dual OLED display putting it right up against the big names. However, there's still some comfort issues to work through. As the name says, the headset still remains open source, allowing third parties to do whatever they want with it.
We have already seen plenty of third parties getting involved to help develop new features, including gesture tracking with a Leap Motion faceplate in the past.
Previously on sale to developers, the general public can now order the first dev kit direct through Razer, although the company is keen to stress that it's still not a consumer product and, as such, only has a 30 day warranty. The second headset is available July this summer.