Love this idea
I think the same, would like to support D:OS 2 but not under this circumstances.
As D:OS comes to Kickstarter, i backed it, like a lot other games, BECAUSE it promises Linux support, that was and is the only reason why i support games on Kickstarter, not to safe 5 dollar/euro
And i think a lot Linux gamer handle the same way
And with a beta, there have the chance to test there linux builds... without tests with a lot of people the port could be extremely worse (like other gameports from other companys in the past) not to mention for the first linux port !