Hi! I'm Jonathan Stark. You can download this picture of my Starbucks card to your phone and buy coffee at Starbucks with it. Seriously. My card gets charged, you don't.
If you're feeling generous, you can also add money to my Starbucks card by doing this and enjoy some serious good karma.
Jonathan's Card is an experiment in social sharing of physical goods using digital currency on mobile phones.
What a neat idea, and I love that you can check the card's balance via Twitter.