Sounds like you might need more air in your front tire ( actually in the tube
). Give that a try, and also look to see whether your shocks have a lockout mechanism, or at least a way to "dial in" the amount of tension vs give they have. Even if they have nothing to do with the particular squishiness you're feeling, you can set them so they'll help you when you hit a bump, but not rob you of all your energy.
I've had two Kona bikes, and loved them both. The first one was stolen, and the second was bent in an accident with a minivan. But before their tragic demises, they were comfortable, fast, and pretty much everything else I wanted out of a bike. I don't know much about their Hoss, but I'm sure it's a great bike.