Hackaday Raspberry Pi Zero – Turning the Pi into a USB Gadget, over USB | Hackaday Hackaday [gbaman] has figured out a simpler way to program the new Raspberry Pi Zero over USB without modifying the board. Why is this useful? One example which appealed to us was setting the Zero's USB port up as a mass storage device.

Read the rest here:
Raspberry Pi Zero – Turning the Pi into a USB Gadget, over USB | Hackaday – Hackaday