Electronic Business Card!

Well, it has been a fully formed idea in my head for quite some time now. Ever since I used a friends thumb drive in class that kinda looked like a calling card, I've been thinking: The technology to put a microcontroller, powered or not on a business card without being noticed is cheap and available now, why can't I do it? So after a few days of brainstorming and googling and well, work I've come up with not only the schematics but the copper board and the silkscreen. What's up?

First batch, just off the presses. I'll keep the blog posted with updates...