*The Minimalist™ Holds 1 to 3 ID/Credit Cards nice and close to your iPhone 4.  Perfect.

NOT 3D printed by Shapeways but very cool. Somehow, despite being proven wrong by mythbusters  I still have the fear of the phone wiping my card.

Of course with the Paypal application you can bump iPhones together to complete a transaction, which would be so cool for selling wares at a design or craft fair...

*The Minimalist™ is the work of TRTL BOT, a Los Angeles-based company that designs eco-functional iPhone accessories. All of our eco-functional shells are made in Southern California.  At the beginning stages, all the designs are discussed and implemented at the TRTL BOT solar powered office. Their solar panels provides enough power to run the office’s lights, computers, and printers. 

Nice.