fitgirl has it. gameplay feels kinda dated, but with some nice additions. Looks pretty good, and the horde engine is cool, lots of baddies to shoot. Unless the pvp and online coop modes are amazing, I can't imagine it being worth 60$, but for the price of free, i'm digging it.
Also from the bit of gameplay I saw I find it funny they're still using the Thunderhawk since there is a new primaris-sized ship called an Overlord, but I guess because it doesn't have a model they didn't have permission to use it.