I cannot help but wonder if this is why my startup Pivotal (http://pivotal.ws) got a rejection letter from YC last night.
Hope this isn't too harsh, but that landing page needs work. Is there anyway you could turn what's in that video into a compelling landing page? I'm not sure where you're at with testing or usability, but I can't imagine that landing page generating many signups.
We putting about $500 dollars into AdWords just to see what CAC looked like and the sign up conversion rate was around 2%, certainly meager when we are talking about just asking for a name and email but alas, it served its purpose.