CIO has a special about how ten famous tech products got their name. Here's how Apple invented the iPod's name:
During Apple's MP3 player development, Steve Jobs spoke of Apple's strategy: the Mac as a hub to other gadgets. Vinnie Chieco, a freelance copywriter Apple hired to help name the gadget before its debut in 2001, fixed on that idea, according to Wired. He brainstormed hubs of all kinds, eventually coming to the concept of a spaceship. You could leave it, but you'd have to return to refuel. The stark plastic front of the prototype inspired the final connection: pod, a la 2001. Add an "i" and the connection to the iMac was complete.