I had the same question as @jd - to clarify this, you might want to change the call to action to "get started for free" or something along those lines...
We're changing the button to say "Get Started - It's free!" better?
That implies free forever, you want to commit to that? That's also what it says now when I first viewed that and yet I still went hunting for pricing. I would actually trust signing up for the free account more if I saw there was a paid option somewhere for whatever reason!
I think our approach is that what you see today is free and future features will be paid. Expect a pricing plan very very shortly though.