Wired's coverage on this. Tony Fadell Is Trying to Build the iPod of Crypto https://www.wired.com/story/tony-fadell-is-trying-to-build-the-ipod-of-crypto-ledg

Wired's coverage on this. Tony Fadell Is Trying to Build the iPod of Crypto https://www.wired.com/story/tony-fadell-is-trying-to-build-the-ipod-of-crypto-ledger-stax/ https://www.wired.com/story/tony-fadell-is-trying-to-build-t... In his (Tony Fadell's) mind, the wallet should be about the size of a credit card and have a touchscreen. ...envisioned people owning several wallets, one for each category of digital collecting or banking. He liked the concept of stacking them on top of each other, like a cash bundle of $100 bills. He came up with the idea of having magnets to snap the units into a tidy stack. That feature provided the name for the device: Stax.