Show HN: Scratch – Share scratch-off photos (itunes.apple.com)

Love the idea. Brand engagement is also a huge potential.

We hacked the project in two weeks to make the photo sharing experience fun. Appreciate any feedbacks..

It's interesting, but definitely have room to be improved. It doesn't seem like having a lot of users on board. Probably user engagement will be the next step to take to make it more fun.