Weird... Thanks for the feedback. It must be a javascript issue in your browser or maybe it's not working on that particular browser. What are you using?
I am not sure you are solving a real problem. I don't 100% understand the point of interests in your app, but as far as tracking tasks and connecting with friends/family who want to accomplish goals I don't see why I wouldn't just use Google Calendar or notes on my iPhone along side with just texting or calling them. As for the video, it does showcase the product fairly well and the landing page seems great for trigger signups.