Seemed pretty solid. I'm not sure I believe there's a market, but there certainly could be. Has definitely viral potential as you demonstrated. I think you took way too long choosing a picture of pleading (that's not a comment on your app, just your demo video).
I like it. Many companies currently use facebook for competitions and giveaways without an easy way to manage them. This looks like a great solution to the problem as well as a nice way for them to increase brand exposure.
Please note - I also am applying to DreamIt Ventures but I feel like the video demonstrates the product pretty well... looking forward to your feedback!