You might have chipped your pet, but would you chip yourself?
Wellington man Ryan Wolstenholme has joined the "biohacker" or "grinder" craze that's picking up steam worldwide, merging man (or woman) and machine.
The Xero software developer implanted an RFID (radio frequency ID) chip into the webbing of his left hand. He uses it to store his smartphone's address book. Hover your phone over his hand, and it offers to add him as a contact.