Cool app. But I have a pet peeve with information pages that only provide video as a description. Whilst I understand that especially for an app like this, the best 'information' is to demonstrate how it works via a video, it doesn't help people a. just want to get a quick one line explanation of what your app does and/or b. can't watch the video at the time (slow connection, work restriction etc).
If I hadn't been at home, I would have just left the page and moved onto to something else - missed sale.