Yeah, I was actually thinking of necroing this thread as well when I noticed the sale, but decided not to.
Did some research of my own and it doesn't seem to have much game to it, at least not yet. It seems that the only thing even remotely fleshed out is the ship builder. Ultimately, I decided not to purchase it. It seemed kind of liking buying Spore for the creature creator. Yeah, it's pretty neat, but I want to play a fun game.
The combat looks to be similar to EVE online's, but with a less user-friendly UI, and without the decisions or scale of combat that makes EVE Online interesting (you can only ever control one ship). If you've ever played EVE Online, you'd probably know that the UI and combat are some of its weakest aspects, so that's saying something. If you've ever played any games where you dogfight other fighters, you'll be extremely disappointed by Kinetic Void's combat. There's nothing 'kinetic' about it.
Alpha is alpha, yes, but the biggest issues I have with the combat can't be solved with a bit of polish; it would need a complete re-write. It makes me wish I had X3 so I had something else to compare it to, to see if the problem is endemic to the genre. EDIT: there are probably some gameplay videos on youtube. eh, i'll look it up later, maybe