Noobie dad stumps techie son with simple Nintendo DS question

My dad stumped me with a noobie question yesterday. He saw both of my sons playing with their Nintendo DS game systems and constantly throwing around the term "DS". My dad looked at me and asked, "What does DS stand for?"

I opened my mouth to answer but realized immediately I didn't have a clue what to say. So I sat and thought about it. And thought about it some more. And some more. And some more. The only answer I came up with was "I don't know. I'm not sure it stands for anything."

Just then my 13 year-old nephew walked in and asked what we were talking about. I explained to him that we were trying to figure out what the "DS" in Nintendo DS stood for and without batting an eye he said "dual-screen". I was amazed at two things. 1) how quickly my nephew answered that question and 2) how much sense that made given that the Nintendo DS has two screens on it.

But as confident as my nephew seemed I decided to match him up against ChaCha. After a few minutes my ChaCha answer came back with an answer from a ChaCha Guide stating that he didn't think DS stood for anything and that it was just a code name used during the game system's development that stuck around when coming up with the final product name.

Still not satisfied, I fired up my laptop and the Internet, did a quick Google search and landed on the Nintendo DS Frequently Asked Questions (FAQ) page. That's where I found this:

What does "DS" stand for?

To our developers, it stands for "Developers' System," since we believe it gives game creators brand new tools which will lead to more innovative games for the world's players.

It can also stand for "Dual Screen."

Looks like we were all right.