Quirky is a design shop that uses ideas from a crowd of contributors and influencers to create new products. In the past, it's come up with some incredibly useful Apple-related accessories like the US$12.99 Power Curl, which has made its inventor almost $80,000 in royalties. Now the company is evaluating a new idea -- a touchscreen stylus called the Cipher (expected price $4) that fits in your wallet like a credit card.
That's because it is a credit card, made with a capacitive material that acts just like your finger or a more traditional stylus. When you want to draw on your iPhone or iPad, you grab the Cipher fr
