I'm one of the contestants in the MintChip Challenge. Basically the idea was to explore what you can do with the MintChip, and all of these apps are prototypes, some more rough than others. The MintChip itself is still in an R&D phase. We had a little over 3 months to come up with our entries and most of us have day jobs as well. I had a great time working on my app and I explore different ways of transferring money between chips. One of the concepts I am demonstrating is sending money anonymously to someone you don't know through Game Center. I haven't seen this idea presented before, either by any of the other contestants in the contest, or elsewhere. I think it's pretty neat to be able to send a gift of as little as 1 cent to a stranger. Who doesn't need money these days? ;)

Here is my app:

http://mintchipchallenge.com/submissions/9448-mintchipd

Please watch the video and of course I would always appreciate votes.

I strongly disagree with any statements saying there is no way to communicate with customers. I currently have 2 applications in the store and both of them have a 'send mail to developer' button that is easily accessible. The heading above the button says, 'For comments, questions, or feedback:', and I receive a lot of emails from my customers. I have never had anyone post a bug in a review.