The kickstarter has already reached its goal of $65000, so they don't need help in that regard. But if you have a Rift, or are waiting to recieve one, you might be interested in pledging for one of the rewards that gets you some early access.
For instance, the $30 tier gives you "early access to Episode #1 beta content" in august. The game itself is scheduled for release a year from now. (But we know all to well how reliable kickstarter estimates can be ;) )
If you want to support development aimed specifically at Rift or VR in general, I encourage you to back this kickstarter, as I have done.